Question

what is hydrogen.... ..​

Answer 1

Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element. ... Most of the hydrogen on Earth exists in molecular forms such as water and organic compounds. For the most common isotope of hydrogen (symbol 1H) each atom has one proton, one electron, and no neutrons.

Answer 2

Answer:

Hydrogen is the chemical element with the symbol H and atomic number 1.Hydrogen is the lightest element. ... Most of the hydrogen on Earth exists in molecular forms such as water and organic compounds. For the most common isotope of hydrogen (symbol 1H) each atom has one proton, one electron, and no neutrons.