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30 Oct 2021

Given information

Here the given isotope of radon is:

 

Step-by-step explanation

Step 1.

In the given isotope ,   the atomic number is 86 and the mass number is 222. 

Since the atomic number gives the number of protons, the isotope consists of 86 protons.

The relationship between Mass Number (A), Number of Protons (p), and Number of Neutrons (n) is as follows:-

   

So, the number of neutrons is calculated as follows:-

 

Substitute 222 for A and 86 for p in the above equation as given below:-

       

    

Thus the given isotope consists of 86 protons and 136 neutrons.

 

 

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