Hydrogen is known as a element and a compound. Hydrogen is a light element with one proton and a gas compound with two hydrogen atoms.
it is a compund. It is a mixture of lead and nitric acid which are both elements
Hydrogen is an element, number 1 on the table of elements actually.
hydrogen gas is H2 so it only contains hydrogen. therefore it is an element
Hydrogen is the most common element in the universe, and in the Sun.
Hydrogen. The lightest element.
pure water is a compund because it's contain hydrogen & oxygen .
Compound
Iron is a chemical element.
Iron is a chemical element.
its an element because its mixed of chemicals, carbon and oxygen.
No. A compund is a mixture of different atoms. E.g. H2O (water) is a compund of both Hydrogen (x2) and Oxygen. If the substance was one pure type of atom then even then no, because even then some of them would be isotopes of that element.
iron sulphate is a compund
For example sodium hypochlorite (NaClO) is a bleach compund.
Element's have only one atom, while compund's have more that one atom.
A chemical symbol represents an element. A chemical formula represents a compund. a chemical formula is like this H2O, that is water, a chemical symbol is just this H, that is hydrogen.
compund i think
Slnium forms the compund H2Se, (so behaves like O and S in formation of a hydrogen compound.