Write downthe electronic configuration of-i-Cr3-iii-Cu-v-Co2-vii-Mn2-ii-Pm3-iv-Ce4-vi-Lu2-viii-Th4-

(i) Cr3+:1s22s22p63s23p63d3 Or, [Ar]183d3(ii) Pm3+:1s22s22p63s23p63d104s24p64d105s25p64f4Or, [Xe]543d3(iii) Cu+:1s22s22p63s23p63d10 Or, [Ar]183d10(iv) Ce4+: ...

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Byju's Answer

Standard XII

Chemistry

Electronic Configuration of d-Block Elements

Write downthe...

Question

Write downthe electronic configuration of:
(i) Cr³⁺+ (iii) Cu⁺ (v) Co²+ (vii) Mn²⁺
(ii) Pm³⁺ (iv) Ce⁴⁺(vi) Lu²⁺ (viii) Th⁴⁺

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Solution

(i) Cr³⁺:1s²2s²2p⁶3s²3p⁶3d³
Or, [Ar]¹⁸3d³
(ii) Pm³⁺:1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁶4f⁴
Or, [Xe]⁵⁴3d³
(iii) Cu⁺:1s²2s²2p⁶3s²3p⁶3d¹⁰
Or, [Ar]¹⁸3d¹⁰
(iv) Ce⁴⁺:1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁶
Or, [Xe]⁵⁴
(v) Co²⁺:1s²2s²2p⁶3s²3p⁶3d⁷
Or, [Ar]¹⁸3d⁷
(vi) Lu²⁺:1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁶4f¹⁴5d¹
Or, [Xe]⁵⁴2f¹⁴3d³
(vii) Mn²⁺:1s²2s²2p⁶3s²3p⁶3d⁵
Or, [Ar]¹⁸3d⁵
(viii) Th⁴⁺:1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰4f¹⁴5s²5p⁶5d¹⁰6s²6s⁶
Or, [Rn]⁸⁶

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(ii)

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Write downthe electronic configuration of:(i) Cr3++ (iii) Cu+ (v) Co2+ (vii) Mn2+(ii) Pm3+ (iv) Ce4+ (vi) Lu2+ (viii) Th4+

Write downthe electronic configuration of:
(i) Cr³⁺+ (iii) Cu⁺ (v) Co²+ (vii) Mn²⁺
(ii) Pm³⁺ (iv) Ce⁴⁺(vi) Lu²⁺ (viii) Th⁴⁺