Single Choice

Which of the following is/are same in isotopes? I. Mass number II. Atomic number III. Arrangement of orbital electrons

AI only
BII only
CI and II only
DII and III only
Correct Answer

Solution

Isotopes are atoms of same element having same atomic number and different mass number.
They have same number of electrons and same number of protons but different number of neutrons.
Hence, the option (D) II and III only, is the correct answer.


SIMILAR QUESTIONS

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