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.
Hydrogen bonds hold together the atoms in a water molecule. A single water molecule is made up of two hydrogen atoms and one oxygen atom. When a water molecule is formed between hydrogen and oxygen atoms, the oxygen atom ends up with a partial negative charge and the two hydrogen atoms end up with partial positive charges. The hydrogen bonds formed are responsible for the stabilized structure of water.