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.
Water, is one oxygen atom bonded to two different hydrogen atoms, H2O. When atoms are bonded together, (H2, O2, H2O etc.) we call the total structure a molecule. Hydrogen atoms and oxygen atoms are found in many different molecules, and these different molecules make up, solids, liquids, and gasses.