Hydrogen only has 1 electron. However it can share electron with other elements. 1s can hold a max of 2 electrons, in hydrogen case it would be 1 ( its on electron) and then 1 more IF it is sharing with another element, but it won't go higher than that.
Carbon has 2 electrons in it's first electron shell. All elements except hydrogen do.
there are 2 electrons in the inner shell of a hydrogen atom.
Beryllium like every other element excluding hydrogen has 2 electrons in its first shell.
hydrogen has only one shell and since it has atomic number one, its net number of electrons is one. the first shell can hold maximum of 2 electrons due to the bohr bury formula. so the number of electrons in its first shell is 1. to fill it 1 electrons are required which can be gained from any metal.
Hydrogen only has one electron, which fills its only electron shell (the first shell).
The first electron shell of any element is the one s shell. Every element except hydrogen has 2 one s electrons.
Hydrogen has one electron. Its outer shell the first energy level has just one orbital, 1s which could hold a maximum of 2 electrons, so hydrogen only partially fills the level.
no electron is present in the outer most shell of hydrogen ion
Two electrons will fill a hydrogen's outer, or valence, shell.
1
Only one electron for hydrogen.
1, because it has an atomic number of one, meaning it has 1 proton & 1 electron. It takes 2 electrons to fill the first electron shell, but hydrogen only has 1. So it remains at the 1st shell.