Helium's atomic number is 2. Therefore, it has 2 positively charged protons in its nucleus. To balance the total charge then, one atom of helium will also have 2 electrons.
One valence electrons
6 electrons
It wants one.
one
one culomb have 6,250,000,000,000,000,000 electrons
There is one lone pair of electrons on the nitrogen atom.
If an atom has five valence electrons, it will have one lone pair of electrons.
one lithium atom is having three(3) electrons
Hydrogen has only one valence electrons.
There are 16 electrons from the oxygen atoms, one from the hydrogen atom and one from the charge, that makes 18 electrons altogether. Its valency is 1.
one lone pair of electrons
Each orbital can hold a maximum of 2 electrons.