molecular formula
The molecular formula specifies the actual number of atoms of each element in a molecule.
The number that comes after it's abbreviation. H2O- two hydrogen, one oxygen
This is specified by the subscripted number directly next right-down to the atom's symbol.Example: Sulfuric acid: H2SO4 has 2 atoms of Hydrogen, 1 atom of Sulfur and 4 atoms of Oxygen per molecule H2SO4
A formula that gives the ratio of elements in a compound is called an empirical formula. On the other hand, the formula that shows the number of atoms in each element present in a molecule is called a molecular formula.
This is called an empirical formula.
Molecular formula is the Actual ratio of atoms of each element in the compound Ex. H20
the actual number of atoms in a molecule
if you mean an iron nail , then it is an element symbol "fe"
The simplest form for a compound, called the empirical formula, gives the simplest whole-number ratio of the elements in the compound, and may differ from the actual molecular formula. For example, the molecular formula for glucose is C6H12O6. The empirical formula would be CH2O, which can be found by dividing the molecular subscripts by 6.
If you were referring to two actual atoms they were not listed. When two atoms of different chemical elements bond together they form a chemical compound.
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Polyatomic ions are not compounds because they are not electrically neutral, and they are not elements because they can be broken down into other chemical constituents -- the actual elements.