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For which of the following sets of four quantum numbers, an electron will have the highest energy:
n l m s
(a) 3 2 1 +1/2
(b) 4 2 1 +1/2
(c) 4 1 0 -1/2
(d) 5 0 0 -1/2
Ans: 4 2 1 +1/2
Neutrons are found in atoms of all elements except in: (1) Chlorine (2) Oxygen (3) Argon (4)Hydrogen Ans: Hydrogen
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