Sodium borohydride
We know NaBH4 as sodium borohydride.
NaBH4 is sodium borohydride. It contains 1 atoms of sodium, 1 atom of boron, and 4 atoms of hydrogen.
Another name for a molecule is a formula unit.
CH3 is not the formula for any stable molecule; it is the formula of a "methyl radical".
There is no molecule by the formula K4I2. The actual formula should be KI and the name should be potassium iodide.
Selenium Monoiodide
Name: Glucose Chemical formula: C6H12O6
A chemical formula would describe a molecule by its constituent parts. The chemical name, however, also is based on chemical formula, and will also describe the molecule.
The chemical symbol (not formula) of fluorine atom is F; the molecule is F2.
Dinitrogen. But usually just nitrogen molecule.
Molecule
3 nabh4 + 4 bf3 = 3 nabf4 + 2 b2h6