Question

1. when an atom loses an electron to become a positive ion, what process is being shown?

○ covalent sharing
○ atomic contraction
○ chemical bonding
○ ionization

1. when an atom forms an ion by losing its outermost electron shell, what happens to the size of the atom?

○ it stays the same.
○ it decreases.
○ it increases.
○ it depends on the row.

Explanation:

Question 9

• Covalent sharing involves sharing electrons, not losing to form ions.
• Atomic contraction is not a term for electron loss to form ions.
• Chemical bonding is a broader term; ionization is specific to forming ions by electron gain/loss.
• Ionization is the process of an atom gaining or losing electrons to form an ion. Losing an electron to become a positive ion is ionization.

• When an atom loses its outermost electron shell (by losing electrons to form a positive ion), the remaining electron cloud is smaller. The nucleus pulls the remaining electrons closer, so the atomic size (ionic radius for the cation) decreases.
• It does not stay the same or increase, and it’s not dependent on the row in this general context.

Answer:

D. Ionization

Question 10