1. As opposed to early periodic tables based on the law of octaves, modern periodic tables arrange the elements in order of increasing:
a. nuclear binding energy.
b. number of neutrons.
c. atomic mass.
d. atomic number.

2. The elements in Group 7A are known by what name?
a. Transition metals
b. Halogens
c. Alkali metals
d. Alkaline earth metals

3. The elements in Group 2A are known by what name?
a. Transition metals
b. Halogens
c. Alkali metals
d. Alkaline earth metals

4. The alkali metal elements are found in __________ of the periodic table.
a. Group 1A
b. Group 2A
c. Group 3A
d. Period 7

5. Which one of the following elements is a transition element?
a. Sr
b. Pb
c. As
d. Fe

6. Consider the element with the electron configuration, [Kr]5s24d7. This element is a(n):
a. representative element.
b. transition metal.
c. nonmetal.
d. actinide element.

7. How many valence electrons does an oxygen atom have?
a. 2
b. 4
c. 6
d. 7

8. What is the charge on the monatomic ion that calcium forms in its compounds?
a. +2
b. +1
c. -1
d. -2

9. Which two electron configurations represent elements that would have similar chemical properties?: (1) 1s22s22p4 (2) 1s22s22p5 (3) [Ar]4s23d5 (4) [Ar]4s23d104p5
a. (1) and (2)
b. (1) and (3)
c. (2) and (3)
d. (2) and (4)

10. The electron configuration of a copper(I) ion is:
a. [Ar]4s23d8.
b. [Ar]4s13d9.
c. [Ar]3d10.
d. [Ar]4s23d64p2.

11. Arrange the following ions in order of increasing ionic radius: K+, P3- , S2- , Cl- .
a. K+ < Cl- < S2- < P3-
b. K+ < P3- < S2- < Cl-
c. P3- < S2- < Cl- < K+
d. Cl- < S2- < P3- < K+

12. Arrange the following ions in order of decreasing ionic radius: Al3+, Mg2+, Na+, O2-.
a. Al3+ > Mg2+ > O2- > Na+
b. Al3+ > Mg2+ > Na+ > O2-
c. Na+ > Mg2+ > Al3+ > O2-
d. O2- > Na+ > Mg2+ > Al3+

13. For which of the following reactions is the enthalpy change equal to the second ionization energy of nitrogen?
a. N2+(g) ® N3+(g) + e-
b. N2+(g) + e-® N+(g)
c. N(g) ® N2+(g) + 2e-
d. N+(g) ® N2+(g) + e-

14. Which of the elements listed below has the highest first ionization energy?
a. He
b. Ne
c. Ar
d. Kr

15. Which of the elements listed below has the smallest first ionization energy?
a. C
b. Ge
c. P
d. O

16. Which of the following elements has the greatest electron affinity (largest positive value)?
a. Mg
b. Al
c. Si
d. S

17. Which of the following elements has the greatest electron affinity (largest positive value)?
a. K
b. Br
c. As
d. Ar

18. Which pair of elements from different groups resembles each other the most in their chemical properties?
a. Be and B
b. Al and Si
c. Li and Be
d. Al and Be

19. In a surprisingly large number of their properties, beryllium resembles aluminum and boron resembles silicon. Such a relationship is called:
a. amphoterism.
b. an allotropic relationship.
c. a diagonal relationship.
d. the periodic law.

20. Which of the following elements has the greatest metallic character?
a. Br
b. F
c. Ge
d. Sc

221. Which is not a transition metal?
a. Ge
b. Ni
c. Po
d. Te

22. Which element is least likely to form a bond with another atom?
a. Kr
b. Xe
c. Fr
d. Ac

23. In the old theory of triads, which element could not be paired with Au?
a. Ag
b. Pt
c. Cu
d. Tc

24. How many different versions of the periodic table are known?
a. 700
b. 2
c. 10
d. 1

25. What is one discovery which was predicted by the periodic table?
a. Which elements give off light
b. High temperature superconductors
c. Better batteries
d. The incandescent light bulb

26. Most of the elements can be found in which form?
a. Solid
b. Liquid
c. Gas
d. Plasma

27. The energy necessary to remove an electron from an element or compound is called:
a. ionization energy.
b. effective nuclear charge.
c. electronegativity.
d. the electron affinity.

28. The change in energy when an electron is added to a neutral atom is called:
a. electronegativity.
b. electron affinity.
c. effective nuclear charge.
d. The Bohr radius.

29. The upper right part of the periodic table (not including the noble gasses) has the elements which are the most:
a. electropositive.
b. electronegative.
c. neutral.
d. unreactive.

30. The periodic table is a tool that is most useful for:
a. determining the relative properties of atoms around one which is known.
b. organizing elements according to their absolute properties.
c. determining which elements will bond with other elements.
d. scientists.