Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Periodic Table
Electronic configuration of copper [Z = 29] is:
1
[Ar] 3d94s2
2
[Ar] 3d94s14p1
3
[Ar] 3d104s1
4
More than one of the above
5
None of the above