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UnitB-Chap1 Taylor

Classifying Matter

_________ is anything that takes up space and has mass Matter
A substance that cannot be broken down into other substances by heat, light, or electricity Element
Many elements are metals. Most metals look shiney. Heat and electricity pass through them easily. They can be hammered into thin sheets pulled into long thin wires Metals
Most non metals are not shiney. Heat and electricity do not pass through them easily. They cannot be hammered into sheets or pulled into a wire. Non Metals
A chart that classifies elements by their properties Periodic table
The smallest particle of an element that has the properties of the element Atom
The center of an atom, where protons and neutrons are located Nucleus
Particle in an atom that has a positive Proton
The number of protons in an atom is the _____________________ of the element and is its number on the periodic table. Atomic Number
The number of electrons in an atom is the same as the number of protons
Particle in an atom that has no change Neutron
Particle in an atom that has a negative electrical charge Electron
A substance made up of atoms of more than one element joined together in a molecule Compound
Two or more atoms joined together; the smallest unit of many substances Molecule
Two or more substances that are mixed together but can be separated out because their atoms are not combined Mixture
A mixture in which substances break up into their most basic particles, which ar too small to be seen, and spread evenly through another substance Solution
A change in one or more physical properties Physical Change
Describes the way a substance reacts with other substances Chemical Property
A change that produces new substances with new properties Chemical Change
A process that produces one or more substances that are different from the original substances Chemical reaction
Created by: lindae5603