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Science Chapter 3
Chapter 3 vocabulary terms
Question | Answer |
---|---|
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 |