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Published byAnn Richardson Modified over 9 years ago
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Matter & Atoms Unit 2
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Matter Matter – anything that has mass and takes up space. Matter is made up of MUCH smaller particles known as atoms. 1)
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Atoms Atoms are the smallest unit of matter. Mostly empty space. Extremely small. 2)
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Nucleus Center of the atom Made up of protons and neutrons.
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Protons Have a positive (+) charge. Protons make each element different from each other.
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Neutrons Have a NEUTRAL charge, or NO charge.
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Electrons Have a negative (-) charge. Fly around the nucleus. Equal number of electrons and protons.
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