Instability of an atoms nucleus can result from an excess of either neutrons or protons . So neutrons and protons .
Explanation:
I
have not yet learnt chemistry so sorry
Answer is: <span>functional groups.
</span>Functional groups<span> are specific </span>groups<span> that are responsible for the characteristic chemical properties of molecule.</span>
<span>Proteins have nitrogen and oxygen in functional group.
Nucleic acids and some lipids have phosphorus in fuctional group.
Carbohydrates have oxygen in functional group for example.</span>
23 pairs of chromosomes, since there is 46 singular chromosomes.
A nuclear reaction<span> in which two or more atomic nuclei come very close and then collide at a very high speed and join to form a new type of atomic nucleus.
Hope this helps :)
</span>
