Question

which statement best explains why hydrogens atomic number is equal to its mass? (1 point) hydrogen only has one electron. hydrogen does not have any neutrons. hydrogen is stable, with two electrons in its outer shell. hydrogen is in the first row and the first column of the periodic table.

Explanation:

The atomic number of an element is equal to the number of protons. Hydrogen has 1 proton and usually 0 neutrons. Its mass number (protons + neutrons) is approximately equal to its atomic number (1) because it often has no neutrons.

Answer:

Hydrogen does not have any neutrons.