Question

Electronic configuration of 20Ca, 18Ar,21Sc,24Cr,29Cu,7N​

Answer 1

Answer:

• Ca - 2,8,8,2.
• Ar - 2,8,8.
• Sc - 2,8,8,3.
• Cr - 2,8,8,4.
• Cu - 2,8,8,9.
• N - 2,7.

Answer 2

Answer:

[Ar] 4s² -----Ca

[Ne] 3s² 3p6--------Ar

[Ar] 3d¹ 4s²---------Sc

[Ar] 3d5 4s¹---------Cr

[Ar] 3d¹⁰4s¹ ---------Cu

[He] 2s² 2p³---------N