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Textbook Expert
Textbook ExpertVerified Tutor
13 Nov 2021

Given information

Chlorine is a chemical element with the symbol Cl and the atomic number 17.

Fluorine is a chemical element with the symbol F and atomic number 9.

Both chlorine and fluorine belong to the group of halogens and are therefore present in group 17. Each element has 7 valence electrons.

 

Step-by-step explanation

Step 1.

The total number of valence electrons in   molecule = 7 + 7*5 = 7 + 35 = 42

The element having the least electronegativity value is usually the central atom and thus chlorine here becomes the central atom.

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