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Science (Red House)

Ch 18 & 19 Test on Matter

QuestionAnswer
State of matter with a definite shape and definite volume Solid
The number of protons in the nucleus of an atom Atomic Number
Description of an item that you can use your senses to figure out Physical Property
Positively charged particle, found in the nucleus of an atom Proton
Heavy particle found in the nucleus of an atom, but has no charge (neutral) Neutron
Negatively charged particle, found outside of the nucleus and is involved in bonding of atoms Electron
Charge of the entire nucleus of an atom Positive
Combination of atoms that are chemically combined and cannot be taken apart by physical means (or easily) Compound
Combination of atoms that can be taken apart easily, by physical means Mixture
Charged atom, formed by having different numbers of electrons Ion
Atom with different numbers of neutrons; some are radioactive Isotope
State of matter with no definite shape and has a definite volume Liquid
State of matter with no definite shape and no definite volume Gas
Basic building block of matter Atom
Most common state of matter in the universe Plasma
Simplest form of matter made of one type of atoms Element
Grid organization of elements Periodic Table
Type of chemical bonds where two or more atoms share electrons ("holding hands") Covalent
Number of protons + neutrons in the nucleus of the atom Mass Number
Center of an atom Nucleus
Type of chemical bonds where two or more ions with opposite charges are attracted to each other Ionic
Description of an item that explains what an object CAN do chemically Chemical Property
Event that changes the size and shape, but not the make-up, of an object Physical Change
Makes a new substance that can be seen by (1) a color change, (2) forming bubbles, or (3) creating a new substance Chemical Change
Letters that represent an element Symbol
Created by: 7th_kms on 2012-10-17



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