Chemistry
Grade-9
Easy
Question
The ground state electronic configuration of Cr is:
- [Ar] 4s1 3d5
- [Ar] 4s1 3d4
- [Ar] 3d4
- [Ar] 4s1 3d3
Hint:
Electron configuration of chromium is 1s2 2s2 2p6 3s2 3p6 3d5 4s1
The correct answer is: [Ar] 4s1 3d5
Electron configuration of chromium is 1s2 2s2 2p6 3s2 3p6 3d5 4s1 which is [Ar]3d5 4s1
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