Please anser with explation
Dear Student
Maximum number of electrons held by shell
K:2
L:8
M:18
N:32
Now electrons in shell(of calcium)
K:2
L:8
M:8
N:2
Hence M and N shells are incompletely filled
So option B is correct
Regards
Maximum number of electrons held by shell
K:2
L:8
M:18
N:32
Now electrons in shell(of calcium)
K:2
L:8
M:8
N:2
Hence M and N shells are incompletely filled
So option B is correct
Regards