Use the equation to answer the question.21H+ 21H→ 42H+energy Which statement best describes the mass numbers of the atoms in the reaction?(1 point)ResponsesThere are two atoms with mass numbers of 2.There are two atoms with mass numbers of 2.There is one atom with a mass number of 1.There is one atom with a mass number of 1.There is one atom with a mass number of 2.There is one atom with a mass number of 2.There are two atoms with mass numbers of 1.

Answer 1

The equation \( 21H + 21H \rightarrow 42H + \text{energy} \) involves two atoms of hydrogen, each with a mass number of 2 (which is typically associated with deuterium, an isotope of hydrogen).

Therefore, the correct statement that best describes the mass numbers of the atoms in the reaction is:

There are two atoms with mass numbers of 2.