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 molecular formula of a compound is the number of atoms of each element in one molecule. So in water (H2O), one molecule of water has 2 Hydrogen atoms and one oxygen. 3 people found this useful. Edit.