which of the following statements correctly describes energy levels?

A. Electrons can never move to a higher or lower energy level.
B. In its outermost energy level, oxygen has 4 valence electrons
C. The Second energy level holds a maximum of eight electrons.
D. The greater the energy of the level, the father away it is from the nucleus.

1 answer

I really don't know how to answer this because the answers are confusing.
A is not true for certain.
B. The electron configuration is 1s2 2s2 2p4 and that 2p4 would make it a true statement; however, I don't think that is the answer wanted. Oxygen has 6 electrons in n = 2 which makes the statement not true. See what I mean.
C. This is true for sure.
D. The energy level at infinity is zero while all of the others\ energy levels from infinity to the nucleus are negative numbers; therefore, taken literally, this statement is true but again, I don't think this is the answer your prof wants.

I think the answer to the question is C but B and D are worded so that they can be interpreted to be true.
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