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Answer the following questions briefly:
Explain atomic number and mass number with examples:
i. Atomic number
The in the nucleus of an atom is known as its atomic number.
Example: has , hence atomic number \(= 7\)
ii. Mass number
A mass number or atomic mass of an atom is equal to the sum of the present in the nucleus.
Example:
If an sulphur has \(16\) protons and \(16\) neutrons, mass number of sulphur atom is.
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