Question

When ions are formed, atoms either gain or lose electrons. How does the size of a magnesium ion compare to an atom of magnesium?

A. A magnesium ion will be larger than an atom of magnesium because there is a gain of electrons.
B. A magnesium ion will be larger than an atom of magnesium because there is a loss of electrons.
C. A magnesium ion will be smaller than an atom of magnesium because there is a loss of electrons.
D. A magnesium ion will be smaller than an atom of magnesium because there is a gain of electrons.

Answer 1

A magnesium ion is smaller than an atom of magnesium because there is a loss of electrons.

Step-by-step explanation:

When ions are formed, atoms either gain or lose electrons. The size of a magnesium ion is smaller than an atom of magnesium because there is a loss of electrons.