What does a nuclear change involve? melting or freezing mixing different compounds together interactions with electrons a change in the structure of the nucleus?

A change in the structure of the nucleus

Explanation:

A nuclear change is a change that occurs in the nucleus of an atom and this changes includes :

a nuclear change is different from a chemical in the sense that in a chemical new elements are formed and the core of the atoms which is the nucleus of the atoms that make up the element are not affected. while a nuclear change affects the nucleus of the atoms directly.  example of a chemical change is the mixing of different compounds together .

the united states presidential election of 1844 was the 15th quadrennial presidential election, held from november 1, to december 4, 1844. democrat james k. polk defeated whig henry clay in a close contest that turned on the controversial issues of slavery and the annexation of the republic of texas.

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i hate my life too. (like jayfeather hates his blindness x3)