One difference between a chemical reaction and a nuclear reaction is that in a nuclear reaction:

a) atoms retain their identity.
b) only the valence electrons are involved.
c) atoms often change from one element to another.
d) only small amounts of energy are absorbed or emitted.

A nuclear reaction is one in which 2 atoms combine or an atom divides to give rise to entirely different atoms. This is basically the difference it has with a chemical reaction. In a chemical reaction, only new compounds are formed but not new elements. In the case of a nuclear reaction however, even if new elements are not formed, a different atom would be formed.

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One difference between a chemical reaction and a nuclear reaction is that in a nuclear reaction: a) atoms retain their identity. b) only the valence electrons are involved. c) atoms often change from one element to another. d) only small amounts of energy are absorbed or emitted.

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One difference between a chemical reaction and a nuclear reaction is that in a nuclear reaction:

a) atoms retain their identity.
b) only the valence electrons are involved.
c) atoms often change from one element to another.
d) only small amounts of energy are absorbed or emitted.