1. Which is NOT true of an ionic bond? It

A. involves a transfer of electrons.

B. involves sharing of electrons.

C. electrostatic attraction between ions.

D. involves metals and non-metals.

2.Which of those elements is transition metal?

A.Carbon B.Calcium C.Copper D.Gallium

3. What is the atomic mass for gold?

A.196.06 B.200.59 C.192.22 D.196.97

4.A potassium ion is much less reactive than a potassium atom because it

a. is much more massive.

b. has a negative electric charge.

c. has a full outermost energy level.

d. is in a different group in the periodic table.

5.Which of the following are all properties of nonmetals?

A. usually donate electrons easily, typically brittle in the solid form, poor conductors of heat

B. usually gain electrons easily, poor conductors of heat, poor conductors of electricity

C. usually gain electrons easily, good conductors of heat and electricity

D. usually donate electrons easily, metallic luster, good conductors of heat

6. Which of the following element groups are considered types of metals?

A. Helium group

B. Lithium group

C. Boron and aluminum group

D. Nitrogen and oxygen groups

E. Halogen group

7. Which of the following atoms has three unpaired electrons?

A. P

b. C

c. N

d. O

8. Which one of the following is the electronic configuration of atom of a noble gas?

A. 1s¹ b. 1s²2s² c. 1s²2s²2p⁶ d. 1s²2s²2p⁶3s²3p⁵

9.All are ionic compounds except

1. NH₃
2. HNO₃
3. CCl₄
4. (NH₄)₂CO₃

10. Consider the electron dot diagram of the unknown element X: