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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

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Related Questions

What is the electron configuration of scandium (Sc)?

The electron configuration of scandium (Sc) is Ar 3d1 4s2.


What is the noble gas electron configuration of scandium?

The noble gas electron configuration of scandium is [Ar] 4s2 3d1. Scandium has 21 electrons, and the noble gas configuration represents the nearest noble gas to scandium, which is argon with 18 electrons.


What is the electronic configuration of Sc in shell?

The electron configuration of scandium is: [Ar]3d1.4s2.


Electronic configuration of scandium?

Electronic configuration of scandium: [Ar]3d1.4s2


What is the noble gas notation of scandium?

The noble gas notation of scandium is [Ar] 3d1 4s2, where [Ar] represents the electron configuration of the noble gas argon. Scandium has 21 electrons, with the electron configuration of [Ar] 3d1 4s2.


How do you write the shorthand electron configuration for scandium?

It is [Ar] 3d1 4s2


What is the electron notation for the three highest-energy electrons for scandium?

The electron configuration for scandium is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^1. Therefore, the three highest-energy electrons in scandium are in the 3d orbital, and the electron notation for these three electrons is 3d^1.


What element has one 3d electron?

The element with one 3d electron is manganese (Mn), which has the electron configuration [Ar] 3d^5 4s^2.


Is scandium a alkali metal?

No, scandium is not an alkali metal. It is actually classified as a transition metal due to its electron configuration and position on the periodic table.


What group have element that has the electron configuration 1s22s22p63s23p63d14s2?

This electron configuration belongs to the element chromium, which has the atomic number 24. Chromium is a transition metal element.


Is scandium a cation OR anion?

Scandium is typically found as a cation with a charge of +3, as it tends to lose three electrons to achieve a stable electron configuration.


How to find the arrangement of electrons on the atom scandium?

The electron configuration of scandium (Sc) is [Ar] 3d1 4s2, indicating that it has 21 electrons arranged in the shells 1s2 2s2 2p6 3s2 3p6 3d1 4s2. Scandium has one electron in the 3d orbital and two electrons in the 4s orbital. This configuration follows the principles of the Aufbau principle and the Pauli exclusion principle.