Exam questionKROK 1Pharmacy ยท 2009
Which electronic configuration of valence electrons is corresponding to an element of the 4th period, VI group, main subgroup?
Answer options
- 6s2 5d2
- 6s2 6p2
- 4s1 3d5
- 4s2 4p4
- 3s2 3p4
Correct answer
4s2 4p4
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