An element is an atom or molecule made of a single type of atom.
A compound is a molecule made of two or more different elements.
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An element is a pure substance made up of only one type of atom, such as oxygen or gold. A compound is a substance made up of two or more different elements chemically bonded together, such as water (H2O) or carbon dioxide (CO2).
Gravel is a mixture of different compounds and elements, such as rocks, minerals, and organic materials. It is not a single compound or element itself.
Granite is a compound composed of different minerals such as quartz, feldspar, and mica. It is not an element but a mixture of different compounds.
No such thing as a 'Compound element'. It is either a 'Compound' or an 'Element. Germanium is an element that appears in the Periodic Table as 'Ge'. NB A compound is a COMBINATION of two or more different elements.
A penny is a compound, not an element. Pennies are typically made of a combination of mostly zinc and copper, which are two different elements.
An element and a compound can undergo a chemical reaction called a single replacement reaction. In this type of reaction, the element replaces one of the elements in the compound, forming a new compound and a different element as a product.