Question

an atom has 5 electrons in the outermost shell what is the valency of this element find the atomic number and write the electronic configuration of the same​

Answer 1

Answer:

The systematic arrangement of electrons in the orbitals is called electronic configuration. The electronic configuration increases in the outermost valence shell which relates to its position in the modern periodic table.  

The electronic configuration of element with atomic number 16 is 2,8,6. This indicates that the element belongs to group 16 and period 3 as the number of valence shell is 3.  

The valency is calculated as follows:

Firstly, write the electronic configuration of the element.

If the valence electrons are more less than or equal to four then the valency is the number of valence electrons.  

If the valence electrons are more than 4 then valency is (8-number of valence electrons).

October 15, 2019

Explanation:

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Answer 2

Answer:

valency is 3

Explanation:

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