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Mass Number and Representation of Atom

The atomic nu...

Question

The atomic number of an element having mass number 23 and number of neutron 12 is ________ .

A

12

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B

35

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C

23

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D

11

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Solution

The correct option is D
11

Atomic number = Mass number - Number of neutrons = Number of protons

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Mass Number and Representation of Atom

Standard IX Chemistry

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