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.

N

Mg

Al

I

O

Li

Rb

F

Answer 1

ANSWER:

Any atom gains or loose the electrons to achieve the stable electronic configuration that is to complete its octate.

N + 3e^- N^3-

Nitrogen has a electronic configuration [He]2s²2p³, but the electronic configuration of N^3- is [He]2s²2p⁶ which have noble electronic configuration.

Mg Mg²⁺ + 2e^-

Magnesium has a electronic configuration [Ne]3s², but the electronic configuration of Mg²⁺ is [Ne]3s⁰ which have noble electronic configuration.

Al Al³⁺ + 3e^-

Aluminium has a electronic configuration [Ne]3s²3p¹, but the electronic configuration of Al³⁺ is [Ne]3s⁰3p⁰ which have noble electronic configuration.

I + 1e^- I^-

Iodine has a electronic configuration [Kr]5s²4d¹⁰5p⁵, but the electronic configuration of I^- is [Kr]5s²4d¹⁰5p⁵ (​ [Xe]) which have noble electronic configuration.

O + 2e^- O^2-

Oxygen has a electronic configuration [He]2s²2p⁴, but the electronic configuration of O^2- is [He]2s²2p⁶ (​ [Ne]) which have noble electronic configuration.

Li Li⁺ + 1e^-

Lithium has a electronic configuration [He]2s¹, but the electronic configuration of Li⁺ is [He]2s⁰ which have noble electronic configuration.

Rb Rb⁺ + 1e^-

Rb has a electronic configuration [Kr]5s¹, but the electronic configuration of Rb⁺ is [Kr]5s⁰ which have noble electronic configuration.

F + 1e^- F^-

Fluorine has a electronic configuration [He]2s²2p⁵, but the electronic configuration of F^- is [He] 2s²2p⁵ (​ [Ne]) which have noble electronic configuration.