Various signs of this include: 1  Canon Foreigner: Adding a new character, often to play the role of The Watson in the adaptation of a book with a lot of dense exposition. 2  Composite Character: Combining character roles (and subsequently enlarging the role of one character) to make a simpler narrative to follow.
A molecule is two or more atoms chemically joined together. If at least two different elements make up the molecule, it is called a compound. For example, hydrogen gas (H2) and water (H2O) are molecules, but water is also a compound because it is made up of hydrogen and oxygen.f at least two different elements make up the molecule, it is called a compound. For example, hydrogen gas (H2) and water (H2O) are molecules, but water is also a compound because it is made up of hydrogen and oxygen.
If the two atoms are identical, as in, for example, the oxygen molecule (O 2), they compose a homonuclear diatomic molecule, while if the atoms are different, as in the carbon monoxide molecule (CO), they make up a heteronuclear diatomic molecule. Molecules containing more than two atoms are termed polyatomic molecules, e.g., carbon dioxide (CO 2) and water (H 2 O). Polymer molecules may contain many thousands of component atoms. A water molecule is made up of two hydrogen atoms and one oxygen atom.