An element is only made of the same type of atoms.
Ex. oxygen is an element, and it is only oxygen atoms, nothing else.
If there's both hydrogen and oxygen atom it is H2O, which is a compound.
this is sodium, hydrogen and oxygen all chemically combined so is a compound
vinigar:carbon, hydrogen baking soda: soduim acetate
Na2CO3
Sodium Hydroxide (NaOH)
The requested formula is NaHSO4.
It is soduim oxide I think and is ionic, ironic isn't it?
Sodium is a metal element. Atomic mass of it is 22.99.
Alkaline Metal
I'm unfamiliar with this element "soduim", but I'm willing to bet it's temperature at room temperature will be... Oh, I dunno... room temperature.
In any compound, if there exists a bond between sodium and oxygen, it is ionic.
ELEMENTAn elementAn element.
When soduim and oxygen bond together they form Soduim oxide.