Periodic Table Study Questions

1.         Why did chemists make the periodic table?

2.         Why was the table difficult to make?

3.         Why were Dobereiner’s triads of limited use at a periodic table?

4.         What did Newland discover about the elements?

5.         What did Meyer contribute to the development of the periodic table?

6.         What did Mendeleev use as the organizing property for the periodic table?

7.         What problem developed from the use of this property?

8.         What is common to elements in a column of the table?

9.         How did properties change in a row of the table?

10.       What was the significance of gaps in Mendeleev’s periodic table?

11.       What did Moseley use to order the elements in the periodic table?

12.       How did Moseley change the periodic law?

13.       What determines the identity of an element?

14.       Why do elements in a column of the periodic table have similar properties?

15.       With respect to the Periodic Table, what is the meaning of periodic?

16.       What does a row of the Periodic table represent?

17.       What happens to valence electrons as you move left to right in a row?

18.       When determines stability in an atom?

19.       List, from least to most, the stable configurations in an atom.

20.       What determines the column of the periodic table an element is in?

21.       What sublevels are in the outer level of an atom?

22.       What is the maximum number of electrons in the outer level of an atom?

23.       What determines the row and column of the periodic table an element is in?

24.       What are common properties of metals?

25.       What are common properties of non-metals?

26.       What three things can happen to electrons when atoms form compounds?

27.       The configuration of He is 1s², but it is placed in column 18. Explain this discrepancy.

28.       Hydrogen is obviously not an alkali metal. Why is it in column 1 of the table?

29.       What is necessary for a metalloid to act as a semiconductor?

30.       What is the difference between N type and P type semiconductors?

31.       What is the direction of current flow in semiconductors?

32.       What is the valence of impurities added to produce a N type semiconductor?

33.       What is the valence of impurities added to produce a P type semiconductor?