The noble gases, because they can't form bonds
Twenty-one. One to change it and twenty to form a fact-finding committee to learn more about how it's done.
None, they don't use light bulbs. They live in caves and use no forms of artificial energy because they wouldn't want to be perceived as hypocrites or morons.
Because noble gases are nonreactive.
The name's Bond, Covalent Bond
He thought the bond was ironic.