Physical and Chemical Properties
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| Matter | Anything that takes up space and has mass.
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| Mass | A measure of the amount of matter contained in a physical body.
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| Volume | The space that something takes up.
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| Solid | Particles close together.
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| Liquid | Particles still close together but not in fixed positions.
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| Gas | Particles spread out
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| Physical Property | A property that can be observed without changing the identity of the substance.
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| Chemical Property | A property that can only be observed by changing the identity of the substance.
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| Atom | Smallest unit of matter
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| Atomic Number | Number of protons in an atom of a given element
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| Atomic Mass | Number of protons plus the number of neutrons in an atom
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| NUCLEUS | center of the atom that has the protons and neutrons (heaviest part of the atom)
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| PROTON | positive subatomic particle in the nucleus
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| NEUTRON | neutral subatomic particle in the nucleus
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| ELECTRON | negative subatomic particle that is around the outside of the nucleus
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| malleability | ability to be flattened into a sheet; bendable
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| ductility | ability to be stretched into a wire
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| reactivity | ability to react with another substance
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| malleability | ability to be flattened into a sheet; bendable
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| ductility | ability to be stretched into a wire
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| reactivity | ability to react with another substance
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| period | horizontal rows on periodic table
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| groups | vertical columns on periodic table
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| melting point | temperature where solid turns to liquid
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| boiling point | temperature where liquid turns to gas
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| metal | shiny, good conductors, malleable, ductility
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| metalloid | like both metal and non-metal, shiny, malleable, semi-conductors
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| non-metal | poor conductors, mostly gases, dull
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