Question

Decide if each of the atoms below will be likely to gain electrons or lose electrons when forming an ion. Label each with the number they will gain or lose.
K
N
Al
O
I
Ba
F
Rb

Answer 1

Metals:loose electrons and non metals gain electrons.
Group 4 gain/loose electrons

Answer 2

K,Ba n Rb are group 1 n Group 2 metal ions so they will lose electron n forms positive ions also Al being a group 3 element will also lose electron n forms positive ion while N,I,O n F being group 6 n group 7 elements they will gain electrons n forms negative ions

Answer 3

K will be K+ Ba n Rb will be Ba2+ n Rb2+, Al will be Al3+ while F and I will be F- n I- n O will be O2- n N will be N3-