HELPP WITH CHEMISTRYYY PLEASE

Answer:
This is the electronic configuration of selenium atom.
Explanation:
Selenium is present in group 16.
It is the member of oxygen family.
Its atomic number is 34.
Electronic configuration:
Se₃₄ = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁴
The noble gas notation is used for the shortest electronic configuration of other periodic table elements.
For example:
The atomic number of Argon is 18, and its electronic configuration is,
Ar₁₈ = 1s² 2s² 2p⁶ 3s² 3p⁶
Abbreviated electronic configuration:
Se₃₄ = [Ar] 4s² 3d¹⁰ 4p⁴