Atoms are made of three subatomic particles called protons, electrons and neutrons, Electrons are found in shells. Two electrons can go in the first shell, and eight in the others., Protons and Neutrons are found in the nucleus of an atom.,

Leaderboard

Estilo ng visual

Mga pagpipilian

Magpalit ng template

Ibalik ng awtomatikong pag-save: ?