Matter
Anything that has mass and takes up space.
Atoms
An atom is the smallest particle into which an element can be divided.
Element
Pure substance that cannot be separated into simpler substances by ordinary chemical process.
Protons
Positively charged particle located in the nucleus of the atom.
Neutron
A particle located in the nucleus of the atom with no electrical charge
Electron
Negatively charged particle found outside the nucleus of the atom. The number arrangement of the electrons determine its chemical properties.
Nucleus
Protons and neutrons stick together to form this structure at the center of the atom.