<span>an abbreviation or short representation of a chemical element; thesymbols in the periodic table</span><span>
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Answer:
The correct option is d
Explanation:
Nuclide is synonymous with groups of electrons or protons, that is, a nuclide is the grouping of nucleons.
Answer:
where are those two images which you have sent
I think it's B. Molecules collide more frequently
