Which of the following statements about quantum numbers is true?
A.
A maximum of 12 electrons can be held inside p orbitals.
C.
The principle number (n) refers to the direction an electron is spinning.
B.
A maximum of 4 electrons can be held inside s orbitals.
D.
The principle number (n)
refers to the energy level an electron is occupying.

The answer is D. Your welcome.

Explanation:

This is Johnathan Nash (aka John) btw, I didn't know you were struggling through this question for Butterfield, Taylor. You want more of the answers from me. I made 17/20 on the final.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.