How do i do Ionic Bonds!

Question

e.e potasium ocsid

potasium is k+

ocsid is O2-

why and how is it K2O then ?

shouldnt it be k+O2-?

Answer 1

Potassium oxide you mean?

K is +1

O is -2

You need 2 of the +1 K to balance the -2 on the O

Thus, you get K₂O.

If you had KO2 that would have a net charge of -1 instead of it being neutral.

+1 and -2 = -1. Get it.