Question

pls answer fast plssss


Which of the following does not have valence electrom in 3d-subshell ??​

Answer 1

Answer:

Phosphorus (P) has electronic configuration 1s2, 2s2, 2p6. 3s2, 3p3 Therefore, no valence electron is present in the 3d-subshell.

Fe (III) has electronic configuration : 3d54s0

Cr(I) : 3d5 4so

Mn (II) :3d5 4s0

hope it helps.

Answer 2

Answer:

Hi mate

7263+3+3+34522+4553+2244=28736382

Hope helps mate have a good time in