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How is an isotope different from the standard form of a
chemical element?
A
It has a different number of protons.
B
It has a different number of neutrons.
с
It has a different number of electrons.
D
It has a different number of positrons.

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Answer:

A.it has a different number of protons.

Answer:

A it has different number of protons

Explanation:

Because an isotope is different from the standard form of a chemical element. and so it has different number of protons

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