MCQ
Mark the correct statement
  • Nuclei of different elements can have the same number of neutrons
  • B
    Every element has only two stable isotopes
  • C
    Only one isotope of each element is stable
  • D
    All isotopes of every element are radioactive

Answer

Correct option: A.
Nuclei of different elements can have the same number of neutrons
a
(a) Nuclei of different elements having the same mass number are called isotones

$e.g.,$  $_4B{e^9}$ and $_5{B^{10}}$

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