Which is the correct order of increasing energy of the listed orbitals in the atom

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Which is the correct order of increasing energy of the listed orbitals in the atom of titanium.(At.no.Z=22)

Options

(a) 4s 3s 3p 3d
(b) 3s 3p 3d 4s
(c) 3s 3p 4s 3d
(d) 3s 4s 3p 3d

Correct Answer:

3s 3p 4s 3d

Explanation:

Ti(22):1s²2s²2p⁶3s² 3p⁶4s²3d²
.·. Order of increasing energy is 3s,3p, 4s, 3d.

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Topics: Structure of Atom (90)
Subject: Chemistry (2512)

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