Energy states of atoms containing more than one electron are influenced by nucleus-electron and electron-electron interactions. which of the following statements correctly describes these effects?
a. larger nuclear charge lowers energy, more electrons in an orbital lowers energy.
b. larger nuclear charge lowers energy, more electrons in an orbital increases energy.
c. smaller nuclear charge lowers energy, more electrons in an orbital lowers energy.
d. smaller nuclear charge lowers energy, more electrons in an orbital increases energy.
e. none of these statements is generally correct.

Atoms consist of three basic entity which can't be broken further into others namely neutron, proton, and electrons. Proton ad neutrons are kept in nucleus while electrons are in  orbital, free to move in an orbital. The larger nuclear charge will make atom more stable and therefore lowers the energy. On the other hand, more electron will make atom unstable, because the energy will increase.

Thereby, option B is right choice.

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it