What is the total numbers of orbitals and electrons for \( m=0 \), if there are 30 protons in an atom? (A) 7 orbitals, 14 electrons (B) 6 orbitals, 12 electrons (C) 5 orbitals, 10 electrons (D) 3 orbitals, 6 electrons

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SravyaSree · Answer 1 · 2024-06-14T10:48:42+0000

Correct option is (A) 7 orbitals, 14 electrons

30 protons corresponds to atomic number 30 and 30 electrons.

It is atomic number of Zn. Its electronic configuration is 1s² 2s² 2p⁶3s²3p⁶ 4s² 3d¹⁰.

Out of this, the electrons and orbitals with m = 0 are 1s² 2s² 2px² 3s² 3p² 4s² 3d².

Total number of such electrons = 2 + 2 + 2 + 2 + 2 + 2 + 2 = 14.

Thus, there are 7 orbitals and 14 electrons from m = 0, if there are 30 protons in an atom.