| Vocabulary | Atoms | Extra info |
|---|---|---|
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What is a nucleus
Positive central part of an atom
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What is a positively charged particle located in the nucleus of an atom
Proton
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What is an atomic number
The top number on a block in the periodic table
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What states that matter is not created or destroyed but only changes form
Law of conservation of matter
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What is an isotope
Two or more atoms of the same element that have different numbers of neutrons in their nuclei
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What is the periodic table
Chart that organizes and displays information about the elements
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What is an invisible negatively charged particle located in a cloudlike formation that surrounds the nucleus
Electron
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What is an element that is melleable, ductile, a good conductor of electricity and generally has a shiny or metallic luster
Metal
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What is matter
Anything with mass that takes up space
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What is an element
Neutral or synthetic material that cannot be broken down into simpler material by ordinary means; generally classified as metalloid metal or non metal
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What is mass number
Sum of the number of protons and neutrons in the nucleus of an atom
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What is it that Rutherford suggested
A new model of atoms
Protons, neutrons and electrons |
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What is matter with a fixed composition who's identity can be changed by chemical processes but not physical processes
Substance
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What is
Average mass of an atom of an element; it's unit of measure if the atomic mass unit (u) which is one and a half the mass of a carbon -12atom
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