how many shells are completely occupied with electron in an element with atomic number 19
a) 2
b) 3
c)4
d)5
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Answer:
Atomic Number = 19
Electrons per shell - 2 , 8 , 9
Maximum Electrons in K = 2
Maximum Electrons in L = 8
Maximum Electrons in M = 18
:- 19th electron will occupy M - shell
Hence , option B is correct.
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