Chemistry Combined science

chemical symbols

all substances are made from tiny particles called atoms. an atom is the smallest part of an element that can exist

atoms of each element are represented by their own chemical symbol. a chemical symbol:

• consists of one or two letters
• always start with a capital letter, with any other letter in lower case.

For example, the symbol O represents an atom of oxygen, and Na represnts sodium. You must write all chemical symbols correctly

There are over 100 different elements…