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30 Oct 2021

Given information

Here the number of neutrons present in the argon isotope is:

Number of neutrons        

We have to find out the isotopic symbol of argon.

Step-by-step explanation

Step 1.

The isotopic symbol of an element can be represented in the form (X-A), where 'X' represents the chemical element and 'A' indicates the mass number.

Here the atomic number of is and the number of neutrons is and we have to find out the mass number of  to represent the isotopic symbol.

The sum of atomic number(Z) and neutrons (N) of an atom is called the mass number (A) and it can be shown as:

    

Hence the mass number of  with  neutrons is:

   

   

Thus the isotopic symbol of argon with neutrons is represented as .

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Principles of Chemistry Molecular Approach
3rd Edition, 2014
Tro
ISBN: 9780321971944

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