chemistry

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.

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asked by Emiko
  1. What do think the answer is and why?
    Oxygen is 1s2 2s2 2p4

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    posted by DrBob222
  2. c.

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    posted by 8=D

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