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Vocab Week 4 18-19

anything that has a mass and takes up space. matter
The basic units of matter and the smallest unit of an element atom
A particle made up of two or more atoms that are chemically bonded together. molecule
A pure substance that CANNOT be separated into a simpler substance by physical or chemical means. element
A subatomic particle with a positive electrical charge proton
A subatomic particle without an electrical charge; neutron
A subatomic particle with a negative charge. electron
The number of protons in the nucleus of an atom. atomic number
Number found below the symbol that tells us the TOTAL number of protons and neutrons in an element atomic mass
Created by: kjonesteacher