Which is the outermost shell of hydrogen atom?
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Hydrogen is reprented as H. It is the first element in the first row of the periodic table.
The atomic number of Hydrogen is 1, it means there is 1 proton in the nucleus and one electron orbiting the nucleus of a hydrogen atom.
It has only one electron in its valence shell.
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The number of electrons that an atom must acquire, or lose, or share to reach a stable configuration of 8 (2 for hydrogen) is called its valence. Hydrogen, lithium, sodium, and potassium atoms all have a single electron in their outermost shell.
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