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How many orbitals are possible in 3^rd energy level? (a) 16 (b) 9 (c) 3 (d) 27

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How many orbitals are possible in 3rd energy level? 

(a) 16 

(b) 9 

(c) 3 

(d) 27

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(b) 9 

3rd energy level Number of orbitals = ? 

n = 3 main shell = m 

l = 0, 1,2 m = 0, -1,0, +1 

Total = 9 orbitals.

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