15) If X element having atomic number = 10 and Number of
neutrons also 10. Calculate the mass number and name the
element.
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Explanation:
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Mass no. is 20.
This is because mass number (A)= atomic no.(Z)+no. Of neutrons.
The element is calcium
This is because mass number (A)= atomic no.(Z)+no. Of neutrons.
The element is calcium
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