What is the atomic number of Hydrogen?

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Multiple Choice

What is the atomic number of Hydrogen?

The atomic number is the count of protons in an atom’s nucleus, and that number defines which element it is. Hydrogen has one proton, so its atomic number is 1. In a neutral atom, there’s usually the same number of electrons as protons, but the atomic number specifically comes from protons. The other numbers correspond to the atomic numbers of other elements—helium has 2, carbon has 6, and oxygen has 8—not hydrogen.

The atomic number is the count of protons in an atom’s nucleus, and that number defines which element it is. Hydrogen has one proton, so its atomic number is 1. In a neutral atom, there’s usually the same number of electrons as protons, but the atomic number specifically comes from protons. The other numbers correspond to the atomic numbers of other elements—helium has 2, carbon has 6, and oxygen has 8—not hydrogen.

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