Answer:
Since electrons cannot have the same set of quantum numbers, a maximum of two can be in the n = 1 level, and a third electron must reside in the higher-energy n = 2 level. If there are two electrons in the n = 1 level, their spins must be in opposite directions.
Answer:
I think it is: Some of the energy is converted into thermal energy.
Explanation:
Please let me know if I am wrong so I can fix it :)
Answer: The Sun Could Be Seen Once during the year when north of the equator.
Answer:
Reproductive cells contain only four gene copy.
Explanation: