electronic configurations

Electronic configurations of some elements are given below. Group the elements in pairs that would represent similar chemical properties:

A = 1s², 2s¹B = 1s², 2s², 2p⁶C = 1s², 2s², 2p³D = 1s¹E = 1s², 2s², 2p⁶, 3s², 3p³F = 1s², 2s²G = 1s², 2s², 2p⁶, 3s¹H = 1s², 2s², 2p⁴, 3s² Pairs representing similar chemical properties: A and D (Both are in Group I, alkali metals) B and F (Both are noble gases) … Read more

The electronic configurations listed below are incorrect. Explain the mistakes in each and write the correct electronic configurations.

z = 1s, 2s, 2p, 3s’ Mistake: The configuration ends with 3s’, which is incorrect because the electron configuration of the 3rd shell should fill the 3s sub-shell first before moving to higher sub-shells such as 3p. Correct configuration: 1s² 2s² 2p⁶ 3s² x = 1s, 2s, 2p’, 3p’ Mistake: The configuration mentions 2p’ and … Read more