Question

How many electrons will each ele-
ment gain or lose in forming an ion?
a. calcium
c. aluminum
b. fluorine
d. oxygen

Can someone please also explain to me how I will know when wich Element loses or gains electrons?

Answer 1

Explanation:

Oxygen- gains 2 electrons to form ions

Fluorine- gains 1 electron to form negative ions

Aluminum - loses three electrons to form ions

Calcium- loses 2 electrons in order to form ions

*Non metals gain electrons to form ions

*Metals loses electrons to form ions