1. The smallest particle that makes up a substance is called an
.
2. Atoms can combine to make a bigger particle called a
.
3. Each different type of atom is called an
.
4a. Each element has its own chemical symbol eg Cu for
, C for
, Na for
, S for
and Ca for
.
4b. Iron has the symbol
, iodine's symbol is
, nitrogen is
and neon is
.
5. Far more elements are strong
like iron used in making
, but there are a smaller number of non-metals, which are usually gases like
.
6. Atoms of different elements can combine together to form a new substance called a
.