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Atomic Number 1

What Element is Atomic Number 1?

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This is a vial containing ultrapure hydrogen gas.

This is a vial containing ultrapure hydrogen gas. Hydrogen is element 1 on the periodic table.

Wikipedia Creative Commons License Protium is the most common isotope of the element hydrogen. Protium has one proton and one electron.

Protium is the most common isotope of the element hydrogen. Protium has one proton and one electron, but no neutrons.

Blacklemon67, Wikipedia Commons

Hydrogen is the element that is atomic number 1 on the periodic table. Each hydrogen atom has one proton.

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