Expire Worthless is when options enter expiration out of the money and expire without any remaining value. Expiring worthless is one of the most common terms used in options trading. Options expire worthless whenever they go into expiration out of the money.
A single molecule of water consists of three atoms. H2O is built from a single atom of oxygen that is single-bonded with two atoms of hydrogen.
The chemical formula for water is H2O. The subscripted 2 indicates that there are two atoms of hydrogen in one water molecule. No subcripted number means there is just one aâ¦tom in the molecule, meaning there are two hydrogen atoms and one oxygen atom.