building block of matter

Part of atom with positive charge, located in the nucleus

definite volume but NOT definite shape

state with the bigger energy

part of an atom with no charge

salad

H2O

anything that has mass and take up space

pure substance form of one kind of atom

nucleous of the atom

two elements joint chemically

two substances mix physically, each one keep its properties

Aluminum (Al)

NaCl

Neon gas, lightning, sun, stars

state of matter in which particles can flow or move

cause change of states in matter and make particles move

Ca2CO4

orange juice, baby, pencil

CO2

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