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Science Chapter 3

Chapter 3 vocabulary terms

QuestionAnswer
What has mass and takes up space? Matter
What is the smallest unit of matter? Atom
What states that matter is not created or destroyed, but can change form? Law of Conservation of Matter
What is an invisible, negatively charged particle? Electron
What is the positively charged center of the atom? Nucleus
What are the positively charged particles in the nucleus? Proton
What are the uncharged particles in the nucleus? Neutron
What is matter made up of only one kind of atom? Element
What is the top number in an element block? Atomic Number
What are atoms of the same element that have different numbers of neutrons? Isotope
What is the number of protons plus the number of neutrons? Mass Number
What is the weighted average mass of the isotopes of an element? Atomic Mass
What generally has a shiny or metallic luster and are good conductors of electricity? Metal
What are elements that are usually dull in appearance and are poor conductors of electricity? Nonmetal
What are elements that have characteristics of metals and nonmetals? Metalloid
What is matter that has the same composition and properties throughout? Substance
Compound
Mixture
Created by: nenahollis
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