Atoms of different elements may have same mass numbers :

Which one of the following statements is not correct?
(a) Atoms of different elements may have same mass numbers
(b) Atoms of an element may have different mass numbers
(c) All the atoms of an element have same number of protons
(d) All the atoms of an element will always have same number of neutrons

Anurag Mishra Professor Asked on 15th February 2016 in Chemistry.
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    Answer: (d) All the atoms of an element will always have same number of neutrons 

    Anurag Mishra Professor Answered on 16th February 2016.
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