Which atoms are indicated by the following configurations?(a) [He] 2s1 – InterviewSolution

1.

Which atoms are indicated by the following configurations?(a) [He] 2s1(b) [Ne] 3s2 3p3(c) [Ar] 4s2 3d1

Answer»

Condensed electronic configuration	Complete electronic configuration	Total no. of electrons	Atomic number	Element
(a) [He] 2s¹	1s² 2s¹	3	3	Li
(b) [Ne] 3s² 3p³	1s² 2s² 2p⁶ 3s² 3p³	15	15	P
(c) [Ar] 4s² 3d¹	1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹	21	21	Sc

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