MCQ
The two elements, with same number of electrons but different mass number, are known as:
  • A
    isotopes
  • B
    isomers
  • C
    isotones
  • D
    isobars

Answer

  1. isotopes

Explanation:

Two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.

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