yes
I would expect the metals potassium, barium, and copper to lose electrons during chemical reactions. I would expect the nonmetals fluorine and sulfur to gain or share electrons depending of the chemical reaction.
Covalent bonds do not gain or lose electrons, but rather share electrons.
Polonium lose electrons.
Sodium lose electrons becoming a cation.
Chlorine gain electrons.
I would expect the metals potassium, barium, and copper to lose electrons during chemical reactions. I would expect the nonmetals fluorine and sulfur to gain or share electrons depending of the chemical reaction.
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.
Sodium lose electrons becoming a cation.