All metals when taking part in chemical reactions tend to lose electrons.
They are electro positive...
electrons in the outer shell, one or two most commonly (in Groups one and two of the Periodic Table) are lost or donated, to attain to an inert gas structure ( a full outer shell).
Atoms typically do not lose protons because that would change the identity of the element. Instead, atoms can lose or gain electrons to form ions with a different charge. Protons are not generally lost by atoms in chemical reactions.
Iron can both gain and lose electrons depending on the reaction it is involved in. In general, iron tends to lose electrons to form positively charged ions, such as Fe2+ or Fe3+, but it can also gain electrons to form negatively charged ions, such as Fe2-.
When atoms gain or lose electrons, they become negatively charged if they gain electrons (anions) or positively charged if they lose electrons (cations). These charged atoms are known as ions.
Beryllium typically loses electrons to form a +2 ionic charge. It is easier for beryllium to lose its outermost electrons than to gain new ones due to its small atomic size.
Aluminum typically loses 3 electrons to form a 3+ cation.
Lose
When atoms lose or gain electrons, they form ions. These are charged particles.
Se will gain electrons
Lose electrons is oxidation. To gain electrons is reduction.
Silicon (Si) can gain or lose 4 electrons. It can either gain 4 electrons to have a stable octet configuration or lose 4 electrons to achieve a stable configuration.
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.
it loses electrons
Electrons
Atoms typically do not lose protons because that would change the identity of the element. Instead, atoms can lose or gain electrons to form ions with a different charge. Protons are not generally lost by atoms in chemical reactions.
Selenium may lose 2, 4 or 6 electrons and may gain 2 electrons.
Gain of one electron
Metals lose electrons, nonmetals gain electrons.