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200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 SmartBigHeavyRadioactivePeriodic
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His model of the atom was a solid ball. 100
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Who was Dalton? 100
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In Thomson’s model of the atom, this part would have had a negative charge. 200
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What are chocolate chips? (Or what are bits of plum?) 200
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The Bohr model has a limited number of these. 300
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What are orbits? 300
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Rutherford learned that most of the atom is made of this. 400
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What is empty space? 400
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Rutherford used these instead of golf balls. 500
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What are alpha particles? (Or what are helium nuclei?) 500
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The atomic number of ununnilium. 100
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What is 110? 100
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Two atoms that are chemically identical, but one is heavier. 200
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What are isotopes? 200
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The abundance of vowels in this sentence. 300
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What is 38%? 300
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Like the atomic mass, but it’s always an integer. 400
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What is mass number? 400
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The most common isotope of selenium. 500
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What is selenium-79? 500
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1/12 the mass of a carbon atom. 100
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What is an AMU? 100
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An element with 50 electrons. 200
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What is tin? 200
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The total mass of a water molecule. 300
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What is 18.015 AMU? 300
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What you get when plutonium gives off an alpha particle. 400
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What is uranium? 400
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An element with four neutrons. 500
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What is lithium? 500
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A cathode ray tube shoots a beam of these. 100
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What are electrons or beta particles? 100
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This Greek letter is another name for electrons. 200
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What is beta? 200
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This element is an alpha particle. 300
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What is helium? 300
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When radium decays, it becomes this. 400
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What is radon? 400
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If a neutron decays, it gives off an electron and turns into this. 500
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What is a proton? 500
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An element with exactly 100 protons. 100
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What is fermium? 100
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The number of electrons in a copper atom. 200
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What is 29? 200
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The number of neutrons in an atom of platinum. 300
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What is 117? 300
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The total number of heavy particles in an atom of potassium. 400
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What is 39? 400
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An ion of this element has 18 electrons and a charge of +2. 500
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What is calcium? 500
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