Isotopes are:

A. found in the nuclear reactions in
stars but not on Earth.
B. are only theoretical.
C. found in nature.
D. only formed in laboratories.

Respuesta :

Isotopes are only formed in laboratories and is denoted as option D.

What are Isotopes?

This refers to an element which has the same atomic number but different mass number due to difference in number of neutrons.

They are also usually formed in laboratories through series of chemical reactions.

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