1b. Atom, molecule, chemical symbol reminders

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(a) The smallest particle that makes up a substance is called an .

(b) Atoms can combine to make a bigger particle called a .

(c) Each different type of atom is called an .

(d) Each element has its own chemical symbol eg Cu for , C for , Na for , S for and Ca for .

(e) Iron has the symbol , iodine's symbol is , nitrogen is and neon is .

(f) Far more elements are strong like iron used in making , but there are a smaller number of non-metals, which are usually gases like .

(g) Atoms of different elements can combine together to form a new substance called a .

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