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WAEC Chemistry 2019 Paper
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© africaexams.com
Question : 46
Total: 50
The number of electrons in the 3d orbital of
24
Cr is
2
3
4
5
Validate
Solution:
Its electronic configuration in ground state is
1s2 2s2 2p6 3s2 3p6 4s1 3d5
.
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