the study of matter and how it changes

occupied space and has mass

solid(fixed volume and shape), liquid (fixed volume), gas

matter is neither created nor destroyed

element, compound, mixture

matter that had constant composition and properties

cannot be broken down chemically

composed of one of more elements, can be broken down into elements

composed of 2 or more types of matter

varies from point to point (clam chowder)

completely uniform

smallest particle of an element that has properties of that element, combine to make compounds

2 or more atoms of any kind combined by chemical bonds

not associated with change in the chemical composition of matter

associated with change in composition

a property that depends on the amount of sample

do not depend on amount of sample

meter, kilogram, second, kelvin, mole

x10^-9

x10^-6

x10^-3

x10^-2

x10^-1

x10^3

building blocks of matter

1800s discovered the electron- plum pudding model

1900s disgorged atomic nucleus- gold foil experiment

z, number of protons in atom

A, total number of protons and neutrons

of protons- # of electrons

atom with same # of proton but different number of neutron

positive ion

negative ion

cation- ammonium

anion- hydroxide

anion carbonate

anion bicarbonate

anion nitrate

anion- sulfate

phosphate

metal and nonmetal