If n = 6, the correct sequence for filling of electrons will be:

If n = 6, the correct sequence for filling of electrons will be:

Options

(a) ns→(n–2)f→(n–1)d→np (b) ns→(n–1)d→(n–2)f→np (c) ns→(n–2)f→np→(n–1)d (d) ns→np(n–1)d→(n–2)f

Correct Answer:

ns→(n–2)f→(n–1)d→np

Explanation:

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Choose isosteres from the following.

Choose isosteres from the following.

Options

(a) NO₂⁻ and PO₄³⁻ (b) NO₂⁻ and O₃ (c) CO₂,N₂O,NO₃⁻ (d) ClO₄⁻ and OCN⁻

Correct Answer:

NO₂⁻ and O₃

Explanation:

NO₂⁻ and O₃ are isosteres because both […]

Set of isoelectronic species is

Set of isoelectronic species is

Options

(a) N₂,CO₂,CN⁻,O (b) N, H₂S, CO (c) N₂,CO,CN⁻,O₂⁺² (d) Cl,Mg,Ca

Correct Answer:

N₂,CO,CN⁻,O₂⁺²

Explanation:

Isoelectronic means equal electric, which means the atom or group have the same number […]

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