This  table is adapted from Paul R. Frey, College Chemistry, 2nd ed. Copyright, 1958, by Prentice-Hall, Inc. Revised 02/11/04) by John Walton, Brunswick Academy,  to include more recently discovered elements Mass in parenthesis is the most mass of the most common isotope. Light Metals													Nonmetals
		GROUP	1	2											13	14	15	16	17	18
	PERIOD	1	H																	He
			Hydrogen																	Helium
			1.008																	4.003
			1																	2
		2	Li	Be											B	C	N	O	F	Ne
			Lithium	Beryllium											Boron	Carbon	Nitrogen	Oxygen	Fluorine	Neon
			6.94	9.013											10.82	12.011	14.008	16	19	20.183
			3	4											5	6	7	8	9	10
		3	Na	Mg			Heavy Metals								Al	Si	P	S	Cl	Ar
			Sodium	Magnesium											Aluminum	Silicon	Phosphorus	Sulfur	Chlorine	Argon
			22.991	24.32											26.98	28.09	30.975	32.066	35.457	39.944
			11	12	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
		4	K	Ca	Sc	Ti	V	Cr	Mn	Fe	Co	Ni	Cu	Zn	Ga	Ge	As	Se	Br	Kr
			Potassium	Calcium	Scandium	Titanium	Vanadium	Chromium	Manganese	Iron	Cobalt	Nickel	Copper	Zinc	Gallium	Germanium	Arsenic	Selenium	Bromine	Krypton
			39.1	40.08	44.96	47.9	50.95	52.01	54.94	55.85	58.94	58.71	63.54	65.38	69.72	72.6	74.91	78.96	79.916	83.8
			19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
		5	Rb	Sr	Y	Zr	Nb	Mo	Tc	Ru	Rh	Pd	Ag	Cd	In	Sn	Sb	Te	I	Xe
			Rubidium	Strontium	Yttrium	Zirconium	Niobium	Molybdenum	Technetium	Ruthenium	Rhodium	Palladium	Silver	Cadmium	Indium	Tin	Antimony	Tellurium	Iodine	Xenon
			85.48	87.63	88.92	91.22	92.91	95.95	99	101.1	102.91	106.4	107.88	112.41	114.82	118.7	121.76	127.61	126.91	131.3
			37	38	39	40	41	42	43	44	45	46	47	48	49	50	51	52	53	54
		6	Cs	Ba	Lu	Hf	Ta	W	Re	Os	Ir	Pt	Au	Hg	Tl	Pb	Bi	Po	At	Rn
			Cesium	Barium	Lutetium	Hafnium	Tantalum	Tungsten	Rhenium	Osmium	Iridium	Platinum	Gold	Mercury	Thallium	Lead	Bismuth	Polonium	Astatine	Radon
			132.91	137.56	174.99	178.5	180.95	183.86	186.22	190.2	192.2	195.09	197	200.61	204.39	207.21	209	210	(210)	(222)
			55	56	71	72	73	74	75	76	77	78	79	80	81	82	83	84	85	86
		7	Fr	Ra	Lw	Rf	Db	Sg	Bh	Hs	Mt	Ds	Uuu	Uub	Uut	Uuq	Uup	Uuh	**	Uuo
			Francium	Radium	Lawrencium	Rutherfordium	Dubnium	Seaborgium	Bohrium	Hassium	Meitnerium	Darmstadium
			(223)	226.05	(260)	(261)	(262)	(263)	(262)	(265)	(266)	(269)	(272)	{277}	{282}	[289]	(289)	[289]		[293]
			87	88	103	104	105	106	107	108	109	110	111	112	113	114	115	116	117	118
			s1	s2	d1	d2	d3	d4	d5	d6	d7	d8	d9	d10	p1	p2	p3	p4	p5	p6
						Inner Transition Metals
		Lanthanide				Ce	Pr	Nd	Pm	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu
						Cerium	Praseodymium	Neodymium	Promethium	Samarium	Europium	Gadolinium	Terbium	Dysprosium	Holmium	Erbium	Thulium	Ytterbium	lutetium
		Series				140.13	140.92	144.27	145	150.35	152	157.26	158.93	162.51	164.94	167.27	168.94	173.4	174.99
						58	59	60	61	62	63	64	65	66	67	68	69	70	71
		Actinide				Th	Pa	U	Np	Pu	Am	Cm	Bk	Cf	Es	Fm	Md	No	Lw
						Thorium	Protactinium	Uranium	Neptunium	Plutonium	Americium	Curium	Berkelium	Californium	Einsteinium	Fermium	Mendelevium	Nobelium	Lawrencium
		Series				232.05	231	238.07	237	242	243	245	249	249	255	255	256	253	(260)
						90	91	92	93	94	95	96	97	98	99	100	101	102	103	990304c.xls
						f1	f2	f3	f4	f5	f6	f7	f8	f9	f10	f11	f12	f13	f14