Give the correct initial T for true & F for false statement (I) For Mn , the order of energy is 3 s = 3 p = 3 d for shell number 3 (II) 32 elements are present in 5 th period of long form periodic tab

Question

Give the correct initial T for true & F for false statement (I) For Mn , the order of energy is 3 s = 3 p = 3 d for shell number 3 (II) 32 elements are present in 5 th period of long form periodic table (III) For Zr + 2 ion, μ m ​ = 8 ​ BM (IV) General valence shell electronic configuration for f -block elements is ( n − 2 ) f 1 − 14 ( n − 1 ) d 10 , ns 2

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Mn: 3s = 3p = 3d → False

3d higher energy than 3s, 3p.

5th period has 32 elements → False

Actually 18 elements (s + p + d).

Zr²⁺: μ = √8 BM → True

Zr²⁺ → 4d² → μ = √[2(2+2)] = √8 BM ≈ 2.83 BM

f-block config = (n–2)f¹⁻¹⁴ (n–1)d¹⁰ ns² → False

(n–1)d may not always be d¹⁰; general config: (n–2)f¹⁻¹⁴ (n–1)d^0-2 ns²

Answer : F F T F

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