Atoms
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| matter | anything that has mass and takes up space
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| atom | tiny particles that matter is made up of
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| element | substances that are made of only one type of atom
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| proton | positive electric charge
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| neutron | no electric charge
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| electron | negative electric charge
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| atomic number | the number of protons and electrons in an atom
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| mass number | number of protons plus the number of neutrons
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| isotope | same elelment but different numbers of neutrons
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| compound | contains atoms of more than one type of element that are chemically bonded together
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| ions | electrically charged atoms
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| mixture | two or more substances not chemically combined
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| heterogeneous mixture | not mixed evenly and each component retains its properties
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| homogenous mixture | evenly mixed throughout
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| solution | another name for homogenous mixture
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| density | number of the measure of mass of an object divided by its volume
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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STEPHEN!
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