A reactive non-metal.
it's an element!
Hydrogen is an element. So the only element in hydrogen is hydrogen.
The element Hydrogen .
Hydrogen (H) is an element. Hydrogen gas (H2) is a molecule.
An element is a substance that contains only one kind of atom. Examples include hydrogen, oxygen, and carbon. Each element is defined by the number of protons in its atomic nucleus.
hydrogen is but not oxygen
Hydrogen is an element, there will be atom that makes up an element and not element that will turn into another.
Hydrogen is known as a element and a compound. Hydrogen is a light element with one proton and a gas compound with two hydrogen atoms.
No. Hydrogen is an element.
Hydrogen
No. Hydrogen is an element.
No. Hydrogen is an element.