Chemistry, asked by Chemist1, 1 year ago

How to find perfect atomic weight of element? e. g Hydrogen =1.008

Answers

Answered by nobel
4
This is not the actual mass of the individual hydrogen.
Hydrogen has three isotopes.
H¹(protium),H²(deuterium)and H³(tritium).
On the basis of their accessibility we calculate the average.
The mass of an element is equal to the sum of protons and neutron present in an element.
So there is no chance of the mass to be a fraction.
It is always a whole number.
The H¹ has only one proton so the mass is just 1u and occupies about 99.98%of whole Hydrogen isotope.
And the other two H²and H³ has 1 proton,1 neutron and 1 proton,2 neutron also their masses are 2u and 3u respectively and covers only 0.02%of whole hydrogen.

From the given data the average could be found and it would be 1.008u.

Hope it helped.
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Have a nice day.
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