Matter is made up of very small parts called atoms. Atoms can combine in different numbers and in different ways to make different molecules. Atoms and molecules make up all of the different ...

These clusters of strongly bonded atoms are called molecules. See how they're represented by two circles of different size and colour that are joined together. This particle diagram represents ...

An atom is the smallest possible piece of an element. When atoms bond, they make molecules. Many molecules form new compounds when different elements bond together. However, some atoms combine into ...