Use the equation to answer the question

Question

2H + 2H = 4H
1. 1. 2

Which statement best describes the mass numbers of the atoms in the reaction

There is one atom with a mass number of one

There is one atom with a mass number of two

There are two atoms with mass numbers of two

There are two atoms with mass numbers of one

Answer 1

There are two atoms with mass numbers of one.