Question

write down the general electronic configuration of group 3 elements​

Answer 1

Answer:

okk

hope it helps you....

Answer 2

*Scandium.

Atomic number = 21.

Electron distribution = (2,8,9,2).

Electronic configuration = 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d1.

*Yttrium.

Atomic number = 39.

Electron distribution = (2,8,18,9,2).

Electronic configuration = 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p6, 5s2, 4d1.

*Lanthanum.

Atomic number = 57.

Electron distribution = (2,8,18,18,8,2,1).

Electronic configuration = 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p6, 5s2, 4d10, 5p6, 6s2, 5d1.

*Actinium.

Atomic number = 89.

Electron distribution = (2,8,18,32,18,8,2,1).

Electronic configuration = 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p6, 5s2, 4d10, 5p6, 4f14, 5d10, 6s2, 6p6, 7s2, 6d1.