Three. In fact, any element in the same column of the periodic table as nitrogen will also gain three electrons when forming an ion.
Nitrogen has five valence electrons and needs three more to achieve a full valence shell of eight electrons, in accordance with the octet rule. By gaining three electrons, nitrogen can complete its outer shell, typically forming covalent bonds with other elements to achieve this stable configuration.
Selenium may lose 2, 4 or 6 electrons and may gain 2 electrons.
A nitrogen atom needs to gain three electrons to achieve a stable electron configuration similar to a noble gas. This would result in the nitrogen atom having a full outer electron shell, like that of a noble gas.
nitrogen should give 5 electrons (or better gain 3 electrons) to attain noble gas configuration.
It will lose 2 to form Sr2+
Nitrogen gains 3 electrons, oxygen gains 2 electrons, sulfur gains 2 electrons, and bromine gains 1 electron when forming ions.
When forming compounds, nitrogen can obtain up to three electrons from other atoms.
Nitrogen will have two valence electrons forming a triagonal pyramid structure.
Nitrogen has 5 electron in it's outer shell, so it would need to gain 3 electrons to have a full valence shell
Nitrogen has to gain three electrons
3
nitrogen has 5 valence electrons. It should gain 3 electrons to achieve a noble gas configuration.
5 valence electrons because it needs to gain 3 electrons in order to become stable
Nitrogen has five valence electrons and needs three more to achieve a full valence shell of eight electrons, in accordance with the octet rule. By gaining three electrons, nitrogen can complete its outer shell, typically forming covalent bonds with other elements to achieve this stable configuration.
One
Nitrogen can gain 3 electrons to achieve a full outer shell with 8 electrons, or lose 5 electrons to achieve a stable electron configuration similar to the noble gas neon.
Selenium may lose 2, 4 or 6 electrons and may gain 2 electrons.