A simple fusion reaction involves the production of hydrogen-2 from the fusion of hydrogen-1 with a neutron. The total mass of the hydrogen-1 plus the neutron is less than the mass of the hydrogen-2. Which statement explains this difference in mass? A. Mass was destroyed and disappeared during the process.
B. Mass from hydrogen-1 was converted into energy during the process.
C. Some of the mass was transformed into neutrons during the process.
D. Some of the mass burned and was transformed into gases during the process.

B. Mass from hydrogen-1 was converted into energy during the process.

Explanation:

The best explanation for this mass difference and deficiency is that mass from hydrogen - 1 was converted into energy during the process.

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.