Question

In which orbitals would the valence electrons for selenium (Se) be placed?

Answer 1

Valence electrons of selenium will be placed in s and p-orbitals. Explanation: Valence electrons are defined as the electrons present in the last shell of any element....

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Answer 2

Answer:

The valence electrons of selenium (Se) would be placed in 4s and 4p orbitals.

Explanation:

• Selenium is the 34th element of the modern periodic table. Selenium is present in the group-16 and represented by symbol ‘Se’. Selenium is a member of the sulfur family placed at third place in group 16.

• The electronic configuration of selenium is [Ar]3d¹⁰4s²4p⁴.
• The electrons present in the outermost shell of Selenium are the valence electrons. Therefore it has six valence electrons placed in 4s and 4p orbital.

• Every element forms bonds with other atoms through its valence electrons.  The valence electrons of any element determine its properties and decide to participate in the formation of bonds.
• The compounds of Selenium have valences of -2, 4, and 6.

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