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An electron has principal quantum number 3. The number of its (i) subshells and (ii) orbitals would be respectively 

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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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1 Answer

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Best answer

Correct option is (c) 3 and 9

If n = 3,

Number of subshells = n = 3

Number of orbitals = n2 = 32 = 9

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