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The symbol of oxygen atom is overset(16)...

The symbol of oxygen atom is `overset(16)underset(8)O`
(i) What is the name given ot the number of protons in the nucleus of the atom?
(ii) What is the name given to the number of protons plus number of neutons in the nucleus of the atom?

Text Solution

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(i) No of protons in the nucelus of the aotm is known as atomic number
`therefore` Atomic no of oxygen (z) =8
(ii) No of portons in the nucleus plus no of neutrons in the nucleus is known as mass number
`therefore` Mass no of oxygen (A) =8+8=16
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