It loses electrons.
In phosphene it gain 4 electrons. Phosphate lose 4 electrons
it gains electrons.
Polonium will neither gain nor lose electron. it will prefer to form covalent compounds by sharing of electrons.
It can do both. It gains electrons in Phosphene, loses electrons in Phosphate.
It gains
No. Atoms can gain and lose electrons but seldom gain or lose protons.
Covalent bonds do not gain or lose electrons, but rather share electrons.
It needs to gain 3 electrons than to lose 5 electrons. So phosphorus has to gain 3 electrons.
Lose
When atoms lose or gain electrons, they form ions. These are charged particles.
Se will gain electrons
In phosphene it gain 4 electrons. Phosphate lose 4 electrons
Lose electrons is oxidation. To gain electrons is reduction.
If you mean Metals... No, they do not gain electrons, they actually lose electrons because it is a lot easy for them to lose them so they can gain stability much faster.
Polonium lose electrons.
sn lose 4 electrons
Sodium lose electrons becoming a cation.