plz check
Radioactive decay occurs when atoms
- lose mass
- join with atoms of another element***
- break down to form atoms of another element
- are exposed to to chemical weathering
i think B

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  1. Nope. Consider the word "decay", or check your text or google

  2. i think its when the composition of the nucleus changes, and the atom is now a another element.

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  3. Yes Abby, but it occurs when a neutron or proton breaks down and changes in the nucleus.
    Go to the head of the class.

  4. yeah. i believe that it is C. :)

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