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CBSE
Class 9
Science
Exploration
Journey Inside the Atom
Question Bank

The average atomic mass of a c...

Single Answer MCQ
Q-00172118

The average atomic mass of a chlorine atom is not simply the average of its isotopes because:

1

They have the same atomic mass.

2

Isotopes have different abundances in nature.

3

They are unstable.

4

Isotopes cannot be combined.

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