Hydrogen is the lightest element on the periodic table of elements. Hydrogen gas is always bonded to itself or something else to fill its outer shell. That is why hydrogen gas is represented as H2. Hydrogen<span> is odorless, colorless, and tasteless; therefore, it is undetectable by human senses.</span>
A species could be a mimic if it's colors are slightly off from the creature they're trying to mimick, or, upon closer inspection, have a different body shape than the creature they're trying to mimick.
