1. What sub-atomic particle is mainly involved in the formation of ions?
electrons
b. neutrons
c. protons
d. all of them
a
?
2. Potassium belongs to group IA in the periodic table, Potassium is most likely to
a. gain an electron
c. either gain or lose an electron
b. lose an electron
d. neither gain nor lose an electron
3. Which of the following atoms is most likely to become a cation?
a. Argon
b. bromine
c. calcium
d. iodine
4. Which atom is most likely to form a 1- ion?
a. Ag
b. I
c. P
d. S
5. What are the general characteristic of metal?
a. losing valence electrons
c. sharing valence electrons
b. gaining valence electrons d. sometime gaining & sometimes losing valence electrons
6. How many valence electrons does an atom of any element in Group 7A?
a. 2
b. 4
c. 7
d. 8
7. Calcium belongs to Group IIA. What will be the charge of calcium when it becomes an ion?
a. 2+
b. 6+
C. 2-
d. 6-
8. An atom carries a 2+ charge. What can you say about the atom?
a. The atom gained two electrons.
b. The atom lost two electrons.
C. The atom either lost or gained two electrons.
d. The atom neither lost nor gained two electrons.
9. What happens when Fe3+ ion is formed?
a. An atom of iron loses three electrons.
b. An atom of iron loses three protons.
C. An atom of iron gains three electrons.
d. An atom of iron gains three electrons.
10. What happens to metals in Group 5A, 6A, and 7A when they form ions?
a. Lose electrons
b. Form positively charged ions
C. Form positively charged of 3-, 2-, and 1- respectively
d. Form ions with a numerical charge equal to their group number​