What is the correct electron configuration for scandium?

Answer 1

The element scandium (atomic number 21) has the electron configuration [Ar] 3d1 4s2

Actually the correct configuration is [Ar] 4s2 3d1

this is because d comes after s in the ladder

The ladder goes as follows:

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p

Answer 2

Electron configuraton of Scandium, 21Sc, is

[Ar] 3d1 4s2

It is the first 3d-block element in period IV (transitium metals)

Answer 3

the electron dot structure is the elemnts abbrieveation with the number of dots(outer most shell of electron shell structure) 2 dots per side. it looks like this:

.Sc:

Answer 4

It is the chemical symbol Se, with 6 dots around it.

Answer 5

1st shell: 2 electrons

2nd shell: 8 electrons

3rd shell: 9 electrons

4th shell: 2 electrons

Answer 6

Electrons per shell: 2,8,9,2

Answer 7

(Ar)4s-2-3d-1-

Answer 8

[Ar]3d14s2

Answer 9

Sc+3