The element hydrogen itself is simply called hydrogen. It's a diatomic element, meaning it exists as a molecule of two hydrogen atoms bonded together, written as H₂.

However, you might be thinking of a compound containing hydrogen. If that's the case, you'll need to provide more information about the compound, such as what other elements are present.

For example:

* Water (H₂O) is a compound of hydrogen and oxygen.

* Methane (CH₄) is a compound of hydrogen and carbon.

* Hydrochloric acid (HCl) is a compound of hydrogen and chlorine.

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