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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

In the following eight problems, write the complete decay equation for the given nuclide in the complete X Z A N notation. Refer to the periodic table for values of Z.

β decay of 40K, a naturally occurring rare isotope of potassium responsible for some of our exposure to background radiation.

To determine

  β  Decay equation of 40K

Explanation

Formula Used:

  A = N + Z

WhereAis atomic mass number

Z= Number of protons in a nucleus

X= symbol for the element

In the expression below:

  XZAN

Z= Number of protons in a nucleus

X = symbol for the element

We know that

  A = N + Z

Where A is atomic mass number

The atomic mass ofK194021is 40 and

  A = 40 Z = 19N = 21

Thus,

  

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