What is an atom?
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NEGATIVE
Charge of an electron
STRONG FORCE
Causes protons and neutrons to be attracted to each other
NUCLEUS
Centre of an atom
POSITIVE
Charge of a proton
MOLECULE
A group of atoms bonded together
ELEMENT
A pure substance made of only one kind of atom
MATTER
Anything that has mass and takes up space
ATOMOS
Greek word for atom that means cannot be divided
ATOMIC NUMBER
Shows the number of protons an element has
NEUTRON
Subatomic particle that does not have a charge
ELECTRON
Subatomic particle that has a negative charge
PROTON
Subatomic particle that has a positive charge
ATOM
The smallest particle of an element and the basic unit of matter
