18 terms

Terms	Definitions
3 branches of science	life, earth, physical
matter	anything that has mass and volume
how does matter exist	solid, liquid, gas, plasma, bose
solid (molecules, type of shape+volume)	molecules are close together and not moving, fixed shape, fixed volume
liquid	molecules kind of close together, moving, any shape, fixed volume
gas	molecules very far away from each other, moving quickly, any shape+volume
what causes matter to behave differently	temperature, pressure
2 types of changes matter can undergo	physical (substance's identity stays the same, ex. water--> ice), or chemical (produces new substance, ex. burning wood)
what are the building blocks of matter	atoms and elements
atom	general/generic, made up of protons, neutrons, and electrons
element	specific type of atom, certain number of p, n, e (#protons=#electrons)
2 regions of an atom	nucleus (core/center, dif from cell nucleus), electron cloud (surround nucleus, has shells/energy levels
protons (symbol, charge, mass (AMU), location)	p, positive, 1 AMU, in nuclues
neutrons (symbol, charge, mass (AMU), location)	n, neutral, 1 AMU, nucleus
electrons (symbol, charge, mass (AMU), location)	e-, negative, negligible, e- cloud
chemical symbol (element)	X (c)=symbol, A (6)=atomic #, smaller number, protons, Z (12.0107)=atomic mass, larger number, To find neutrons: atomic mass=protons+neutrons, or 12=6+x, x=6
how to find atomic mass (z)	p+n=atomic mass
In Periodic Table: Row Column	Row=period Column=group

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