A compound is not lighter than an element, if that element is part of the compound. Some compounds, like H2O would be lighter than, say, the element lead, but it is not lighter than the elements that make it up, i.e. hydgrogen and/or oxygen.
There are many, but one is Helium
Vinegar is a compound. An element is anything found on the Periodic Table. A compound is anything made of more than one element.
Compound- it is made up of more than one element.
Iron is the major element in steel. Only an element can be an element, and an element can not be a compound, the definition of which requires more than one element.
Rhenium
Boron is lighter than carbon and uranium.
Sulfuric acid is a compound since it is made of more than one element.
An element is composed of only one kind of atom. A compound is composed of atoms of more than one element.
If there's more than just silicon in the compound, it's a compound
loads - look at the 72 elements before it in the periodic table
Carbon is not a compound. It is an element. Compounds are made up of more than one type of element.
Compounds have more than one kind of element.