sub atomic particles

proton

Proton: A tiny particle with a positive charge found in the center (nucleus) of an atom. The number of protons tells you what element the atom is

electron

a subatomic particle that has a negative charge

nuetron

a subatomic particle that has no charge and that is found in the nucleus of an atom

nucleus

in physical science, an atom’s central region, which is made up of protons and neutrons

atomic number

the number of protons in the nucleus of an atom; the atomic number is the same for all atoms of an element

mass number

the sum of the numbers of protons and neutrons in the nucleus of an atom

isotope

an atom that has the same number of protons/atomic number, as other atoms of the same element do but that has a different number of neutrons/atomic mass.

quantity

amount of something/ number

unit

Label

physical property’s

trait you can observe but cant change

chemical property’s

how a substance reacts with another substance

chemical change

New properties new substance

physical change

same properties different appearance

substance(s)

atom,element,ion,coumpound,molecule

Reactants

substances before the yield

volume

space occupied

mass

the amount of material presence

matter

anything that occupies space mass and volume

weight

the force used by gravity on an object

homogenous

uniform throughout

heterogenous

not uniform throughout

conversion factor

is a ratio that uses two similar units that show a measurement of the same side

density

the mass of the object divied by its volume

coumpound

a piece of the whole