Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Y, Zr, Nb,
Mo, Tc, Ru, Rh, Pd, Ag, Hf, Ta, W, Re, Os, Ir, Pt, Au,
Unq, Unp, Unh, Uns, Uno, Uun
The Transition metals are generally hard, strong metals with high melting and boiling points; they are also usually electropositive. That is, they react by tending to lose, rather than gain, electrons. Certain unique properties of the transition elements are related to their d subshell electrons. These properties include variable oxidation states, formation of brightly coloured compounds, tendency to form many complexes, and ferromagnetism and paramagnetism.
Name: Scandium
Symbol: Sc
Atomic Number: 21
Atomic Weight: 44,9559 g/mol
Oxidation States: 3
Boiling Point: 3109 K
Melting Point: 1814 K
Density: 2,99 g/cm3
Electron Configuration: [Ar]3d1,4s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1,36
Heat of Vaporization: 304,80 kJ/mol
Heat of Fusion: 16,11 kJ/mol
Electrical Conductivity: 1,5 106 (Om cm)-1
Thermal Conductivity: 15,8 W/(m K) (at 300
K)
Specific Heat Capacity: 0,568 J/(g K) (at
300 K)
First Ionization Potential: 6,54
Atomic Volume: 15,0 cm3/mol
Atomic Radius: 1,62 A
Covalent Radius: 1,44 A
Synthetic: No
Discovery: 1870; by Nilson in Uppsala, Sweden
Note: soft metal; reacts easily with oxygen;
burns in air; scandium is rarely used for anything
Name: Titanium
Symbol: Ti
Atomic Number: 22
Atomic Weight: 47,88 g/mol
Oxidation States: 4, 3
Boiling Point: 3560 K
Melting Point: 1935 K
Density: 4,54 g/cm3
Electron Configuration: [Ar]3d2,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1,54
Heat of Vaporization: 425,2 kJ/mol
Heat of Fusion: 18,6 kJ/mol
Electrical Conductivity: 2,6 106 (Om cm)-1
Thermal Conductivity: 21,9 W/(m K) (at 300
K)
Specific Heat Capacity: 0,523 J/(g K) (at
300 K)
First Ionization Potential: 6,82
Atomic Volume: 10,60 cm3/mol
Atomic Radius: 1,45 A
Covalent Radius: 1,32 A
Synthetic: No
Discovery: 1791; by Gregor in Cornwall, England
Note: very hard metal; reacts rapidly with
oxygen to form protective oxide layer; titanium oxide is very white and
used to make paint; titanium is very strong and is used to make many manufactured
items
Name: Vanadium
Symbol: V
Atomic Number: 23
Atomic Weight: 50,9415 g/mol
Oxidation States: 5, 4,3,2
Boiling Point: 3650 K
Melting Point: 2136 K
Density: 6,11 g/cm3
Electron Configuration: [Ar]3d3,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, body centered
Electronegativity: 1,63
Heat of Vaporization: 446,7 kJ/mol
Heat of Fusion: 22,8 kJ/mol
Electrical Conductivity: 4,0 106 (Om cm)-1
Thermal Conductivity: 30,7 W/(m K) (at 300
K)
Specific Heat Capacity: 0,489 J/(g K) (at
300 K)
First Ionization Potential: 6,74
Atomic Volume: 8,35 cm3/mol
Atomic Radius: 1,34 A
Covalent Radius: 1,22 A
Synthetic: No
Discovery: 1801; by delRio in Mexico
Note: soft metal; mixed with iron to make
corrosion resistant steel
Name: Chromium
Symbol: Cr
Atomic Number: 24
Atomic Weight: 51,996 g/mol
Oxidation States: 3, 6,2
Boiling Point: 2945 K
Melting Point: 2130 K
Density: 7,19 g/cm3
Electron Configuration: [Ar]3d5,4s1
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 1,66
Heat of Vaporization: 339,5 kJ/mol
Heat of Fusion: 20 kJ/mol
Electrical Conductivity: 7,9 106 (Om cm)-1
Thermal Conductivity: 93,7 W/(m K) (at 300
K)
Specific Heat Capacity: 0,449 J/(g K) (at
300 K)
First Ionization Potential: 6,766
Atomic Volume: 7,23 cm3/mol
Atomic Radius: 1,30 A
Covalent Radius: 1,18 A
Synthetic: No
Discovery: 1780; by Vauquelin in Paris, France
Note: very hard blue-white metal; does not
readily react with oxygen; used as plating to protect other metals
Name: Manganese
Symbol: Mn
Atomic Number: 25
Atomic Weight: 54,9380 g/mol
Oxidation States: 4,2, 7,6,3
Boiling Point: 2235 K
Melting Point: 1518 K
Density: 7,44 g/cm3
Electron Configuration: [Ar]3d5,4s2
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 1,55
Heat of Vaporization: 219,74 kJ/mol
Heat of Fusion: 14,64 kJ/mol
Electrical Conductivity: 0,5 106 (Om cm)-1
Thermal Conductivity: 7,82 W/(m K) (at 300
K)
Specific Heat Capacity: 0,48 J/(g K) (at 300
K)
First Ionization Potential: 7,435
Atomic Volume: 7,39 cm3/mol
Atomic Radius: 1,35 A
Covalent Radius: 1,17 A
Synthetic: No
Discovery: 1774; by Grahn in Stockholm, Sweden
Note: hard, brittle metal; burns in air; used
in fertilizers, glass and ceramics, and as an additive in steel making
Name: Iron
Symbol: Fe
Atomic Number: 26
Atomic Weight: 55,847 g/mol
Oxidation States: 3, 2
Boiling Point: 3023 K
Melting Point: 1808 K
Density: 7,874 g/cm3
Electron Configuration: [Ar]3d6,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, body centered
Electronegativity: 1,83
Heat of Vaporization: 349,5 kJ/mol
Heat of Fusion: 13,8 kJ/mol
Electrical Conductivity: 11,2 106 (Om cm)-1
Thermal Conductivity: 80,2 W/(m K) (at 300
K)
Specific Heat Capacity: 0,449 J/(g K) (at
300 K)
First Ionization Potential: 7,870
Atomic Volume: 7,10 cm3/mol
Atomic Radius: 1,26 A
Covalent Radius: 1,16 A
Synthetic: No
Discovery: 2500 BC; discoverer unknown
Note: soft, shiny metal; combines easily with
oxygen to form oxides (rust); one of the most important metals; mixed with
carbon to make steel
Name: Cobalt
Symbol: Co
Atomic Number: 27
Atomic Weight: 58,9332 g/mol
Oxidation States: 2, 3
Boiling Point: 3143 K
Melting Point: 1768 K
Density: 8,90 g/cm3
Electron Configuration: [Ar]3d7,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1,88
Heat of Vaporization: 373,3 kJ/mol
Heat of Fusion: 16,19 kJ/mol
Electrical Conductivity: 17,9 106 (Om cm)-1
Thermal Conductivity: 100 W/(m K) (at 300
K)
Specific Heat Capacity: 0,421 J/(g K) (at
300 K)
First Ionization Potential: 7,86
Atomic Volume: 6,70 cm3/mol
Atomic Radius: 1,25 A
Covalent Radius: 1,16 A
Synthetic: No
Discovery: 1735; by Brandt in Stockholm, Sweden
Note: shiny, hard metal; does not readily
oxidize; used to make magnets, glass and ceramics, and paint
Name: Nickel
Symbol: Ni
Atomic Number: 28
Atomic Weight: 58,6934 g/mol
Oxidation States: 2, 3
Boiling Point: 3005 K
Melting Point: 1726 K
Density: 8,90 g/cm3
Electron Configuration: [Ar]3d8,4s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 1,91
Heat of Vaporization: 377,5 kJ/mol
Heat of Fusion: 17,2 kJ/mol
Electrical Conductivity: 14,6 106 (Om cm)-1
Thermal Conductivity: 90,7 W/(m K) (at 300
K)
Specific Heat Capacity: 0,444 J/(g K) (at
300 K)
First Ionization Potential: 7,635
Atomic Volume: 6,60 cm3/mol
Atomic Radius: 1,24 A
Covalent Radius: 1,15 A
Synthetic: No
Discovery: 1751; Cronstedt; Stockholm, Sweden
Note: soft, shiny metal; does not readily
oxidize; can be easily formed into shapes; used in coins, metal plating
Name: Copper
Symbol: Cu
Atomic Number: 29
Atomic Weight: 63,546 g/mol
Oxidation States: 2, 1
Boiling Point: 2840 K
Melting Point: 1356,6 K
Density: 8,96 g/cm3
Electron Configuration: [Ar]3d10,4s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 1,90
Heat of Vaporization: 300,5 kJ/mol
Heat of Fusion: 13,14 kJ/mol
Electrical Conductivity: 60,7 106 (Om cm)-1
Thermal Conductivity: 401 W/(m K) (at 300
K)
Specific Heat Capacity: 0,385 J/(g K) (at
300 K)
First Ionization Potential: 7,726
Atomic Volume: 7,10 cm3/mol
Atomic Radius: 1,28 A
Covalent Radius: 1,17 A
Synthetic: No
Discovery: 5000 BC; discoverer unknown
Note: soft, red-brown metal; good conductor
of electricity; used in coins and electric wires
Name: Yttrium
Symbol: Y
Atomic Number: 39
Atomic Weight: 88,9059 g/mol
Oxidation States: 3
Boiling Point: 3611 K
Melting Point: 1795 K
Density: 4,47 g/cm3
Electron Configuration: [Kr]4d1,5s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1,22
Heat of Vaporization: 393,3 kJ/mol
Heat of Fusion: 17,15 kJ/mol
Electrical Conductivity: 1,8 106 (Om cm)-1
Thermal Conductivity: 17,2 W/(m K) (at 300
K)
Specific Heat Capacity: 0,30 J/(g K) (at 300
K)
First Ionization Potential: 6,38
Atomic Volume: 19,80 cm3/mol
Atomic Radius: 1,78 A
Covalent Radius: 1,62 A
Synthetic: No
Discovery: 1794; by Gadolin in Finland
Note: soft, shiny metal; burns very easily;
reacts with water; used in manufacture of television screens; gives red
color to television images
Name: Zirconium
Symbol: Zr
Atomic Number: 40
Atomic Weight: 91,224 g/mol
Oxidation States: 4
Boiling Point: 4682 K
Melting Point: 2128 K
Density: 6,51 g/cm3
Electron Configuration: [Kr]4d2,5s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1,33
Heat of Vaporization: 590,5 kJ/mol
Heat of Fusion: 21 kJ/mol
Electrical Conductivity: 2,3 106 (Om cm)-1
Thermal Conductivity: 22,7 W/(m K) (at 300
K)
Specific Heat Capacity: 0,278 J/(g K) (at
300 K)
First Ionization Potential: 6,84
Atomic Volume: 14,10 cm3/mol
Atomic Radius: 1,60 A
Covalent Radius: 1,45 A
Synthetic: No
Discovery: 1789; by Klaproth in Berlin, Germany
Note: hard, shiny metal; burns in air; used
to make bricks, ceramics, and abrasives
Name: Niobium
Symbol: Nb
Atomic Number: 41
Atomic Weight: 92,9064 g/mol
Oxidation States: 5, 3
Boiling Point: 5015 K
Melting Point: 2742 K
Density: 8,57 g/cm3
Electron Configuration: [Kr]4d4,5s1
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 1,6
Heat of Vaporization: 690,1 kJ/mol
Heat of Fusion: 26,9 kJ/mol
Electrical Conductivity: 6,6 106 (Om cm)-1
Thermal Conductivity: 53,7 W/(m K) (at 300
K)
Specific Heat Capacity: 0,265 J/(g K) (at
300 K)
First Ionization Potential: 6,88
Atomic Volume: 10,80 cm3/mol
Atomic Radius: 1,46 A
Covalent Radius: 1,34 A
Synthetic: No
Discovery: 1801; by Hatchett in London, England
Note: soft, shiny metal; resists corrosion,
used with iron to make stainless steel
Name: Molybdenum
Symbol: Mo
Atomic Number: 42
Atomic Weight: 95,94 g/mol
Oxidation States: 6, 5,4,3,2
Boiling Point: 4912 K
Melting Point: 2896 K
Density: 10,22 g/cm3
Electron Configuration: [Kr]4d5,5s1
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 2,16
Heat of Vaporization: 590,4 kJ/mol
Heat of Fusion: 36 kJ/mol
Electrical Conductivity: 17,3 106 (Om cm)-1
Thermal Conductivity: 138 W/(m K) (at 300
K)
Specific Heat Capacity: 0,25 J/(g K) (at 300
K)
First Ionization Potential: 7,099
Atomic Volume: 9,40 cm3/mol
Atomic Radius: 1,39 A
Covalent Radius: 1,30 A
Synthetic: No
Discovery: 1781; by Hjelm in Uppsala, Sweden
Note: soft, shiny metal; usually found as
a gray powder; used to strengthen steel
Name: Technetium
Symbol: Tc
Atomic Number: 43
Atomic Weight: 98 (iso) g/mol
Oxidation States: 7
Boiling Point: 4538 K
Melting Point: 2477 K
Density: 11,5 g/cm3
Electron Configuration: [Kr]4d5,5s2
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 1,9
Heat of Vaporization: 502,0 kJ/mol
Heat of Fusion: 23 kJ/mol
Electrical Conductivity: 0,001 106 (Om cm)-1
Thermal Conductivity: 50,6 W/(m K) (at 300
K)
Specific Heat Capacity: 0,24 J/(g K) (at 300
K)
First Ionization Potential: 7,28
Atomic Volume: 8,5 cm3/mol
Atomic Radius: 1,36 A
Covalent Radius: 1,27 A
Synthetic: Yes
Discovery: 1937; Perrier & Segre; Palermo,
Italy
Note: shiny metal; radioactive; does not occur
naturally and must be produced in nuclear reactors
Name: Ruthenium
Symbol: Ru
Atomic Number: 44
Atomic Weight: 101,07 g/mol
Oxidation States: 4, 2,3,6,8
Boiling Point: 4425 K
Melting Point: 2610 K
Density: 12,37 g/cm3
Electron Configuration: [Kr]4d7,5s1
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 2,2
Heat of Vaporization: 567,77 kJ/mol
Heat of Fusion: 25,52 kJ/mol
Electrical Conductivity: 14,9 106 (Om cm)-1
Thermal Conductivity: 117 W/(m K) (at 300
K)
Specific Heat Capacity: 0,238 J/(g K) (at
300 K)
First Ionization Potential: 7,37
Atomic Volume: 8,30 cm3/mol
Atomic Radius: 1,34 A
Covalent Radius: 1,25 A
Synthetic: No
Discovery: 1808; by Sniadecki in Poland
Note: very shiny metal; does not react with
oxygen; used in jewelry to strengthen platinum
Name: Rhodium
Symbol: Rh
Atomic Number: 45
Atomic Weight: 102,9055 g/mol
Oxidation States: 3, 2,4
Boiling Point: 3970 K
Melting Point: 2236 K
Density: 12,41 g/cm3
Electron Configuration: [Kr]4d8,5s1
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, face centered
Electronegativity: 2,28
Heat of Vaporization: 495,39 kJ/mol
Heat of Fusion: 21,76 kJ/mol
Electrical Conductivity: 23 106 (Om cm)-1
Thermal Conductivity: 150 W/(m K) (at 300
K)
Specific Heat Capacity: 0,242 J/(g K) (at
300 K)
First Ionization Potential: 7,46
Atomic Volume: 8,30 cm3/mol
Atomic Radius: 1,34 A
Covalent Radius: 1,25 A
Synthetic: No
Discovery: 1803; by Wollaston in London, England
Note: very rare element; hard, shiny metal;
used in chemical laboratories
Name: Palladium
Symbol: Pd
Atomic Number: 46
Atomic Weight: 106,42 g/mol
Oxidation States: 2,4
Boiling Point: 3240 K
Melting Point: 1825 K
Density: 12,0 g/cm3
Electron Configuration: [Kr]4d10
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 2,20
Heat of Vaporization: 393,3 kJ/mol
Heat of Fusion: 16,74 kJ/mol
Electrical Conductivity: 10,0 106 (Om cm)-1
Thermal Conductivity: 71,8 W/(m K) (at 300
K)
Specific Heat Capacity: 0,244 J/(g K) (at
300 K)
First Ionization Potential: 8,34
Atomic Volume: 8,90 cm3/mol
Atomic Radius: 1,37 A
Covalent Radius: 1,28 A
Synthetic: No
Discovery: 1803; by Wollaston in London, England
Note: shiny metal; radioactive; usually found
with uranium; rarely used
Name: Silver
Symbol: Ag
Atomic Number: 47
Atomic Weight: 107,868 g/mol
Oxidation States: 1
Boiling Point: 2436 K
Melting Point: 1235,08 K
Density: 10,50 g/cm3
Electron Configuration: [Kr]4d10,5s1
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, face centered
Electronegativity: 1,93
Heat of Vaporization: 250,60 kJ/mol
Heat of Fusion: 11,30 kJ/mol
Electrical Conductivity: 62,9 106 (Om cm)-1
Thermal Conductivity: 429 W/(m K) (at 300
K)
Specific Heat Capacity: 0,235 J/(g K) (at
300 K)
First Ionization Potential: 7,576
Atomic Volume: 10,30 cm3/mol
Atomic Radius: 1,44 A
Covalent Radius: 1,34 A
Synthetic: No
Discovery: 3000 BC; discoverer unknown
Note: soft, shiny metal; noble metal; used
in photographic chemicals; jewelry, coins; good electrical conductor
Name: Hafnium
Symbol: Hf
Atomic Number: 72
Atomic Weight: 178,49 g/mol
Oxidation States: 4
Boiling Point: 4875 K
Melting Point: 2504 K
Density: 13,31 g/cm3
Electron Configuration: [Xe]4f14,5d2,6s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1,3
Heat of Vaporization: 661,07 kJ/mol
Heat of Fusion: 21,76 kJ/mol
Electrical Conductivity: 3,4 106 (Om cm)-1
Thermal Conductivity: 23,0 W/(m K) (at 300
K)
Specific Heat Capacity: 0,14 J/(g K) (at 300
K)
First Ionization Potential: 6,65
Atomic Volume: 13,6 cm3/mol
Atomic Radius: 1,67 A
Covalent Radius: 1,44 A
Synthetic: No
Discovery: 1923; Coster & Hevesey; Copenhagen
Note: very shiny, soft metal; burns in air;
used for control rods in nuclear reactors
Name: Tantalum
Symbol: Ta
Atomic Number: 73
Atomic Weight: 180,9479 g/mol
Oxidation States: 5
Boiling Point: 5730 K
Melting Point: 3293 K
Density: 16,65 g/cm3
Electron Configuration: [Xe]4f14,5d3,6s2
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 1,5
Heat of Vaporization: 737,0 kJ/mol
Heat of Fusion: 36 kJ/mol
Electrical Conductivity: 8,1 106 (Om cm)-1
Thermal Conductivity: 57,5 W/(m K) (at 300
K)
Specific Heat Capacity: 0,14 J/(g K) (at 300
K)
First Ionization Potential: 7,89
Atomic Volume: 10,90 cm3/mol
Atomic Radius: 1,49 A
Covalent Radius: 1,34 A
Synthetic: No
Discovery: 1802; by Ekeberg in Uppsala, Sweden
Note: soft, shiny metal; very corrosion resistant;
used in electronics, special tools, and in surgery for body part replacements
Name: Tungsten
Symbol: W
Atomic Number: 74
Atomic Weight: 183,85 g/mol
Oxidation States: 6, 5,4,3,2
Boiling Point: 5825 K
Melting Point: 3695 K
Density: 19,3 g/cm3
Electron Configuration: [Xe]4f14,5d4,6s2
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 2,36
Heat of Vaporization: 422,58 kJ/mol
Heat of Fusion: 35,40 kJ/mol
Electrical Conductivity: 18,2 106 (Om cm)-1
Thermal Conductivity: 174 W/(m K) (at 300
K)
Specific Heat Capacity: 0,13 J/(g K) (at 300
K)
First Ionization Potential: 7,89
Atomic Volume: 9,53 cm3/mol
Atomic Radius: 1,41 A
Covalent Radius: 1,30 A
Synthetic: No
Discovery: 1783; by Elhuijar in Spain
Note: shiny, white metal; very high melting
point, (3390 C); used in light bulb filaments and cutting tools
Name: Rhenium
Symbol: Re
Atomic Number: 75
Atomic Weight: 186,207 g/mol
Oxidation States: 7,4, 6,2,-1
Boiling Point: 5870 K
Melting Point: 3455 K
Density: 21,0 g/cm3
Electron Configuration: [Xe]4f14,5d5,6s2
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 1,9
Heat of Vaporization: 707,1 kJ/mol
Heat of Fusion: 33,05 kJ/mol
Electrical Conductivity: 5,8 106 (Om cm)-1
Thermal Conductivity: 47,9 W/(m K) (at 300
K)
Specific Heat Capacity: 0,137 J/(g K) (at
300 K)
First Ionization Potential: 7,88
Atomic Volume: 8,85 cm3/mol
Atomic Radius: 1,37 A
Covalent Radius: 1,28 A
Synthetic: No
Discovery: 1925; Noddack in Berlin, Germany
Note: shiny metal; resists corrosion; high
melting point; used in electronics
Name: Osmium
Symbol: Os
Atomic Number: 76
Atomic Weight: 190,2 g/mol
Oxidation States: 4, 2,3,6,8
Boiling Point: 5300 K
Melting Point: 3300 K
Density: 22,6 g/cm3
Electron Configuration: [Xe]4f14,5d6,6s2
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 2,2
Heat of Vaporization: 627,6 kJ/mol
Heat of Fusion: 29,29 kJ/mol
Electrical Conductivity: 12,3 106 (Om cm)-1
Thermal Conductivity: 87,6 W/(m K) (at 300
K)
Specific Heat Capacity: 0,13 J/(g K) (at 300
K)
First Ionization Potential: 8,7
Atomic Volume: 8,43 cm3/mol
Atomic Radius: 1,35 A
Covalent Radius: 1,26 A
Synthetic: No
Discovery: 1803; Tennant in London, England
Note: very shiny metal; does not react with
many chemicals; has acrid odor; used in metal alloys
Name: Iridium
Symbol: Ir
Atomic Number: 77
Atomic Weight: 192,22 g/mol
Oxidation States: 4, 2,3,6
Boiling Point: 4700 K
Melting Point: 2720 K
Density: 22,6 g/cm3
Electron Configuration: [Xe]4f14,5d7,6s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 2,20
Heat of Vaporization: 563,58 kJ/mol
Heat of Fusion: 26,36 kJ/mol
Electrical Conductivity: 21,3 106 (Om cm)-1
Thermal Conductivity: 147 W/(m K) (at 300
K)
Specific Heat Capacity: 0,130 J/(g K) (at
300 K)
First Ionization Potential: 9,1
Atomic Volume: 8,54 cm3/mol
Atomic Radius: 1,36 A
Covalent Radius: 1,27 A
Synthetic: No
Discovery: 1803; Tennant in London, England
Note: hard, shiny metal; very stable; does
not react with acids; used in spark plugs
Name: Platinum
Symbol: Pt
Atomic Number: 78
Atomic Weight: 195,08 g/mol
Oxidation States: 4, 2
Boiling Point: 4100 K
Melting Point: 2042,1 K
Density: 21,45 g/cm3
Electron Configuration: [Xe]4f14,5d6,6s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 2,28
Heat of Vaporization: 510,45 kJ/mol
Heat of Fusion: 19,66 kJ/mol
Electrical Conductivity: 9,4 106 (Om cm)-1
Thermal Conductivity: 71,6 W/(m K) (at 300
K)
Specific Heat Capacity: 0,13 J/(g K) (at 300
K)
First Ionization Potential: 9,0
Atomic Volume: 9,10 cm3/mol
Atomic Radius: 1,39 A
Covalent Radius: 1,30 A
Synthetic: No
Discovery: 1700 BC; discoverer unknown
Note: very shiny metal; unaffected by oxygen
and most chemicals; used to make jewelry and drugs
Name: Gold
Symbol: Au
Atomic Number: 79
Atomic Weight: 196,9665 g/mol
Oxidation States: 3, 1
Boiling Point: 3130 K
Melting Point: 1337,58 K
Density: 19,3 g/cm3
Electron Configuration: [Xe]4f14,5d10,6s1
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, face centered
Electronegativity: 2,54
Heat of Vaporization: 324,43 kJ/mol
Heat of Fusion: 12,36 kJ/mol
Electrical Conductivity: 48,8 106 (Om cm)-1
Thermal Conductivity: 317 W/(m K) (at 300
K)
Specific Heat Capacity: 0,128 J/(g K) (at
300 K)
First Ionization Potential: 9,225
Atomic Volume: 10,20 cm3/mol
Atomic Radius: 1,46 A
Covalent Radius: 1,34 A
Synthetic: No
Discovery: 3000 BC; discoverer unknown
Note: rare, soft, yellow metal; does not react
with oxygen; used in jewelry and coins; world's supply of gold would fit
in a cube, 40 feet on each side
Name: Unnilquadium
Symbol: Unq
Atomic Number: 104
Atomic Weight: 261 (most stable) g/mol
Electron Configuration: [Rn]5f14,6d2,7s2
Synthetic: Yes
Discovery: 1964; in the Soviet Union
Note: metal; radioactive; does not occur naturally;
made by bombarding Californium atoms with carbon nuclei; a few thousand
atoms have been produced
Name: Unnilpentium
Symbol: Unp
Atomic Number: 105
Atomic Weight: 262 (most stable) g/mol
Electron Configuration: [Rn]5f14,6d3,7s2
Synthetic: Yes
Discovery: 1967; in the Soviet Union
Note: metal; radioactive; does not occur naturally;
made by bombarding Californium atoms with nitrogen nuclei; only a few atoms
have been produced
Name: Unnilhexium
Symbol: Unh
Atomic Number: 106
Atomic Weight: 263 (most stable) g/mol
Electron Configuration: [Rn]5f14,6d4,7s2
Synthetic: Yes
Discovery: 1974; in the Soviet Union
Note: metal; radioactive; does not occur naturally;
only a few atoms have been produced
Name: Unnilseptium
Symbol: Uns
Atomic Number: 107
Atomic Weight: 262 (most stable) g/mol
Electron Configuration: [Rn]5f14,6d5,7s2
Synthetic: Yes
Discovery: 1976; in the Soviet Union
Note: metal; radioactive; does not occur naturally;
only a few atoms have been produced
Name: Unniloctium
Symbol: Uno
Atomic Number: 108
Atomic Weight: 265 (most stable) g/mol
Electron Configuration: [Rn]5f14,6d6,7s2
Synthetic: Yes
Discovery: 1984; in West Germany
Note: metal; radioactive; does not occur naturally;
only a few atoms have been produced
Name: Unnilennium
Symbol: Une
Atomic Number: 109
Atomic Weight: 266 (most stable) g/mol
Electron Configuration: [Rn]5f14,6d7,7s2
Synthetic: Yes
Discovery: 1982; in West Germany
Note: metal; radioactive; does not occur naturally;
only a few atoms have been produced
Name: Unununium
Symbol: Uun
Atomic Number: 110
Atomic Weight: 268
Discovery: 1987; in the Soviet Union
Note: metal; radioactive; does not occur naturally;
only a few atoms have been produced
