Electron configuration of Fe

Answer 1

Fe3+ = = 1s2, 2s2, 2p6, 3s2 , 3p6 , 3d5

(S2- = = 1s2, 2s2, 2p6, 3s2, 3p2) As the S2- ion has gained to electrons not lost them, it now has 18 electrons not 14, Thus:

S2- = 1s2, 2s2, 3p6, 3s2, 3p6

Answer 2

[Ar] 4s2 3d4

This is incorrect.

The correct answer is [Ar] 3d6 because the 4s orbital is the outer shell. The electrons will leave the 4s shell before they will leave the 3d shell.

Answer 3

The electron configuration of iron (Fe) is [Ar] 3d^6 4s^2. This means there are 26 electrons in an iron atom, with 2 in the 4s orbital and 6 in the 3d orbital. The [Ar] represents the electron configuration of the noble gas argon, whose electron configuration is 1s^2 2s^2 2p^6 3s^2 3p^6.

Answer 4

1s2 2s2 2p6 3s2 3p6 4s2 3d3 or [Ar] 4s2 3d3

Answer 5

Long-hand version: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^6 Short-hand version: [Ar] 4s^2 3d^6 Note: The "^" symbol means the the following number is in the form of a superscript.

Answer 6

The electron configuration of Fe is: 1s22s22p63s23p64s23d6

Answer 7

ask your teacher

Answer 8

1s2 2s2 2p6 3s2 3p6 4s2 3d10

Answer 9

[Ar]3d5