Question

-Write the electronic configuration of (i) Mn4+, (ii) Fe3+ (iii) Cr2+ and Zn2+ Mention the number of

unpaired electrons in each case​

Answer 1

Answer:

1)Manganese has the atomic number 25 and its electronic configuration is  [Ar]4s23d5

Electronic configuration of Mn4+ = [Ar] 3d3 = 3 unpaired electron

2) Fe has the atomic number 26 and its electronic configuration is [Ar]4s23d6

Electronic configuration of Fe3+ = [Ar] 3d5 = 5 unpaired electron

3) Cr has the atomic number 24 and its electronic configuration is [Ar]4s13d5

Electronic configuration of Cr2+ = [Ar] 3d4 = 4 unpaired electron