The answer is compound. This a substance shaped when chemical elements (two or more) are chemically joined together. The kind of bonds holding elements in a compound can differ: there are two common kinds namely covalent bonds and ionic bonds. The elements in at all compound are continuously existing in fixed ratios.
The bad smelling element is Sulfur, which smells like rotting eggs.
The correct is this because they said
Answer:
none of the above
Explanation:
because all of them are unstable
It’s gonna be which ever element(s) that has the same number of valence electrons!!