Question

which of the following elements will form +4 ions?
a magnesium
b gallium
c germanium
d calcium

Explanation:

• Magnesium (Group 2) forms +2 ions.
• Gallium (Group 13) forms +3 ions.
• Germanium (Group 14) can lose 4 electrons to form +4 ions.
• Calcium (Group 2) forms +2 ions.

Answer:

c. Germanium