What is elemental form in chemistry?
Elemental form may refer to either atoms or molecules of an element. It is the native state of an element which contains one or more atoms of the same element and not any other. For example, the elemental form of helium is a monoatomic gas. Similarly the elemental form of hydrogen is H2 gas, that of nitrogen is N2 gas, sodium metal is Na solid etc. Note that in all the above, the substances contain only atom(s) of only one type of element and not any other element.