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Which best describes a radioactive isotope?

An atom is unstable.
An atom is stable.
There is only one other isotope.
There are many isotopes.

Respuesta :

Nonportrit
Hello,

The answer should be option A "An atom is unstable".

Reason:

A radioactive isotope is a atom thats nucleus is unstable therefore the answer is option A.

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit
oreanmack2004

Answer:

The answer is A an atom is unstable

Explanation:

I ttok this question on a test and got it right.

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