Elements, Compounds and Mixtures

Question	Answer
Hydrogen	H
Oxygen	O
Carbon	C
Cobalt	Co
Iron	Fe
Gold	Au
Copper	Cu
Magnesium	Mg
Nitrogen	N
Sulfur	S
Calcium	Ca
Chlorine	Cl
Element	Contains only one type of atom e.g. Hydrogen, Oxygen, Carbon, Chlorine Only one capital letter should be present
Compound	Contains more than one type of element e.g. sodium chloride, hydrogen peroxide
Mixture	Having more than one substance present however, they do NOT mix e.g. sand and salt
dio- ... e.g. carbon DIOxide	2 atoms (in this case 2 oxygen atoms combined with 1 carbon atom)
Mono- ... e.g. carbon monoxide	1 atom (in this case there is only 1 oxygen atom combined with the carbon atom)
Atom	Atoms are the building blocks of molecules. They are smaller than molecules e.g. H2 (2 should be subscript): 2 atoms
Molecule	one group of element or compound bonded together E.g. 3H2 (2 should be subscript) 3 molecules 6 atoms
Periodic table	A table of all the elements. There are a lot of elements (118 elements). They are all written in symbols
Metals	conduct electricity conduct heat can be bent shiny when polished all are solids except for mercury Example: cobalt, iron, gold,copper, magnesium, calcium
Non-Metals	do not conduct electricity do not conduct heat cannot be bent (brittle) are not shiny can be solids, liquids and gases Example:Hydrogen, oxygen, carbon, nitrogen, sulfur, chlorine

Resource summary

	Created by Karen Bugeja almost 10 years ago