Hydrogen Valence Electrons
Why hydrogen has 1
Hydrogen has 1 electron, arranged as 1s1. The highest shell is n = 1, holding 1s1, so 1.
Hydrogen is in group 1, and groups 1 and 2 have as many valence electrons as their group number.
What that means for bonding
Hydrogen can lose its single electron (H⁺), gain one to fill its first shell (the hydride ion H⁻), or, most often, share it in one covalent bond.
Electrons per shell: 1. See the hydrogen electron configuration and orbital diagram or the full hydrogen data sheet.
Same group, same count
Hydrogen valence electrons FAQ
How many valence electrons does hydrogen have?
Hydrogen has 1 valence electron. Its electron configuration is 1s¹, and the outermost shell (n = 1) holds 1s¹.
How do you find the valence electrons of hydrogen?
Hydrogen is in group 1, and groups 1 and 2 have as many valence electrons as their group number.
How many bonds does hydrogen form?
Hydrogen can lose its single electron (H⁺), gain one to fill its first shell (the hydride ion H⁻), or, most often, share it in one covalent bond.
What is the Lewis dot structure of hydrogen?
The symbol H with 1 dot around it, one per valence electron, placed singly on each side before any side is paired.
How many core electrons does hydrogen have?
0: 1 electrons in total minus the 1 valence electron.