Early 2000's.
It is not an element.It is a compound named hydrogen peroxide.
it's an element!
Henry Cavendish is credited with the discovery of hydrogen in 1766. He identified it as a distinct element and named it "inflammable air."
Hydrogen is an element. So the only element in hydrogen is hydrogen.
The element named after a scientist known for his theory of relativity is einsteinium, with the atomic number 99. It was discovered in the debris of the first hydrogen bomb test in 1952.
The element Hydrogen .
Hydrogen (H) is an element. Hydrogen gas (H2) is a molecule.
Hydrogen is an element, there will be atom that makes up an element and not element that will turn into another.
hydrogen is but not oxygen
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.
In 1776, a British scientist, Henry Cavendish recognized hydrogen as a definite element and he named it as inflammable gas as it burns. The name hydrogen to it was given by a French scientist Lavoisier in 1783.
Hydrogen is an elemental gas. It exists as the molecule ' H2 '. Structurally shown as ' H-H '. NB Hydrogen does NOT exist as a monatomic gas. It is NOT a compound. Compounds are combinations of atoms of different elements, e.g. water (H2O). NB To avoid confusion. Molecules are two or more atoms combined together. They may be of the samer or different elements. Compounds are molecules consisting of two or more DIFFERENT atoms combined together. So molecules can be consist of two or more atoms Compounds can be consist of two or more different atoms. Hence compounds are molecules, but molecules are not necessarily compounds ; subtle difference.