An electron has principal quantum number 3. The number of its (i) subshells and (ii) orbitals would be respectively
(a) 3 and 5
(b) 3 and 7
(c) 3 and 9
(d) 2 and 5
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subshell 2 and orbitals 5 so
d)2 and 5 is correct answer
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