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CBSE
Class 9
Science
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Journey Inside the Atom
Question Bank

Why are isotopes not all ident...

Single Answer MCQ
Q-00172112

Why are isotopes not all identical in weight?

1

Isotopes have different numbers of protons.

2

Isotopes have different numbers of neutrons.

3

Isotopes have different electron configurations.

4

Isotopes react differently in chemical reactions.

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