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Atoms and KMT Word Scramble

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Question	Answer
atoms	smallest piece of matter that retains the properties of the element
nucleus	very small, very dense center of the atom with a positive charge, contains protons and nuetrons
proton	subatomic particle found in the nucleus, has a positive charge
neutron	subatomic particle found in the nucleus, has no electrical charge (neutral)
electron	subatomic particle that orbits the nucleus, has a negative charge
quark	subatomic particle that makes up protons and neutrons
atomic number	number of protons in the nucleus
atomic mass	the average mass of an atom of an element and all its isotopes
periods	(Rows) horizontal rows of elements- first element a very reactive solid, last element a very non-reactive gas
families	(Columns) columns of elements who share similar characteristics
luster	shininess, high melting point
malleable	can be pounded into sheets- good conductors
ductile	can be made into wires
solid	particles vibrate in place packed tightly together
liquid	particles are spaced apart more than solids; move moderately fast and flow around each other
gas	particles move very fast and expand to fit the container
plasma	state in which matter is heated to extermely high temperature and the electrons separate from atoms
phase change	when a substance changes from one phase of matter to another due to gain or loss of heat energy
conservation of matter	matter cannot be destroyed, it can only change forms
physical property	any characteristic of a material such as a size or shape that you can observe without changing the identity of a material
matter	solids, liquids, gases, or plasmas
mass	measure of the amount of matter in an object; always constant
weight	gravitational force on an object; changes depending on the amount of gravity
density	the amount of mass in a certain volume; mass/volume
melting	when a solid changes phase to a liquid due to the addition of heat energy; happens a the melting point
freezing	when liquid changes to a solid due to a loss of heat energy; happens a the freezing point
vaporization	when a liquid changes to a gas due to the additon of heat energy; happens at the boiling point
sublimation	when a solid changes phases to a gas without becoming a liquid due to the addtion of heat energy
condensation	when a gas changes to a liquid due to a loss of heat energy