Element A, B, C, D & E have following electronic configuration. (A) 1s2, 2s2 2p1 (B) 1s2, 2s2 2p6, 3s2 3p1 (C) 1s2, 2s2 2p6, 3s2 3p3 (D) 1s2, 2s2 2p6, 3s2 3p5 (E) 1s2, 2s2 2p6, 3s2 3p6 Which among the belongs to same group in the periodic table?

Engineering

Chemistry

Application of Modern Periodic Table

Question

Element A, B, C, D & E have following electronic configuration.

(A) 1s², 2s² 2p¹

(B) 1s², 2s² 2p⁶, 3s² 3p¹

(D) 1s², 2s² 2p⁶, 3s² 3p⁵

(E) 1s², 2s² 2p⁶, 3s² 3p⁶

Which among the belongs to same group in the periodic table?

A & C

A & D

A & E

A & B

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(A) & (B) having 3e^– in valence shell so they are same group element.