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27 terms by merkertffms Teacher

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smallest part of an element that can be identified as that element


negatively charged particle


neutral particle


center, or core, of an atom


positively charged particle

atomic number

number of protons in the nucleus of an atom

atomic mass

total mass of the protons and neutrons in an atom, measured in atomic mass units

mass number

number of protons and neutrons in the nucleus of an atom

energy level

place in an atom where an electron is most likely to be found


substance made up of two or more elements chemically combined


smallest part of a substance that has all the properties of the substance


any element or compound


two or more substances that have been mixed together but not chemically combined

chemical formula

way of writing the name of a compound using chemical symbols


number written to the lower right of a chemical symbol

K shell

can hold up to 2 electrons

L shell

can hold up to 8 electrons

M shell

can hold up to 18 electrons


amount of water an object replaces


cloudy mixture of two or more substances that settle on standings


not able to dissolve


able to dissolve


substance that is dissolved in a solvent


substance in which a solute dissolves


go into solution


mixture in which one substance is evenly mixed with another substance

surface tension

like an elastic net around the water that holds the molecules together

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