Nobelium Electron Configuration:7 Easy Steps to Follow!

Electron configuration for an element gives an idea about distribution of electrons in atomic orbitals. Let us study the electron configuration in below steps.

The Electron configuration of Nobelium is [Rn] 5f¹⁴ 7s². Nobelium (No) has atomic number 102 and is prepared synthetically in the particle accelerators. It is a radioactive, f block element which is the 10^th transuranic element. The known isotopes of Nobelium to exist are thirteen.

In the following article, the Electron configuration, rules required for describing electron configuration and orbital diagrams for Nobelium will be elaborated step by step.

How to write Nobelium electron configuration?

The electron configuration of No is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ . The electron configuration is derived using the following steps illustrated below:

• s orbital can hold up to 2 electrons.
• p orbital can hold up to 6 electrons
• d orbital can hold up to 10 electrons, and
• f orbital can hold up to 14 electrons.

• The electrons are filled in the respective shells using Aufbau’s principle, Hund’s rule and Pauli’s exclusion principle.
• Thus, the electron configuration of No is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ .

Nobelium electron configuration diagram

The electron configuration of No is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ . The diagram drawn is as follows:

Nobelium electron configuration notation

The electron configuration of No is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ which is written in two ways as mentioned below:

• With respect to noble gas Radon [Rn] 5f¹⁴ 7s²
• In terms of atomic orbitals 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴

Nobelium unabbreviated electron configuration

The unabbreviated electron configuration for No is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ .

Ground state Nobelium electron configuration

The ground state electron configuration of No is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ .

Excited state of Nobelium electron configuration

The excited state electron configuration of No is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s⁰ 5f¹⁴ 7p² .

Ground state Nobelium orbital diagram

The ground state orbital diagram for No is drawn using the following steps:

• At first, with respect to increasing order of energies arrange the orbitals.
• The electrons are then filled in the orbitals as per Aufbau’s principle, Hund’s rule and Pauli’s exclusion principle. The ground state orbital diagram of No representing the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ is illustrated as follows:

Conclusion:

The electron configuration is very necessary to obtain information about an element’s magnetic property and oxidation state. Nobelium was found to behave as the heaviest homolog of ytterbium. Nobelium is only used for research purposes.

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