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Essential Question: What are the building blocks of matter?
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AtomMolecule ElementCompound NucleusChemical Formula ProtonIsotope Neutron Electron Atomic Number Atomic Mass Chemical Symbol
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What matter is made of.
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Basic building blocks of all matter. Different kinds of atoms make different kinds of elements.
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Basic substances that make up all matter. Cannot be broken down into simpler substances. 90 natural elements; 118 total. Examples: Carbon, oxygen, gold, silver.
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The small, dense center of the atom.
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A particle in nucleus with a POSITIVE charge. Weight: 1 a.m.u. (atomic mass unit)
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A particle in nucleus with NO charge – it is “neutral.” Weight: 1 a.m.u.
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Very small particle found in electron clouds orbiting around the nucleus of the atom. They have a NEGATIVE charge. Weight: 0 a.m.u.
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https://www.youtube.com/watch?v=_lNF3_3 0lUE https://www.youtube.com/watch?v=_lNF3_3 0lUE
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https://www.youtube.com/watch?v=UDIprICe 9kg https://www.youtube.com/watch?v=UDIprICe 9kg Color/glue models into a timeline in your notebook. Include Name, Year, Picture, and description.
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Distinguishes between different elements. Number of PROTONS. (Also the number of electrons!) All elements have their own Atomic Number.
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The mass (weight) of the atom. Equals PROTONS + NEUTRONS.
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An atom with additional neutrons. The atom has more mass, but is identified as the same element.
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One or two letter abbreviation of each element. Examples: C – carbon; Ca – calcium; Ag – silver.
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Two or more atoms combined together with chemical bonds. Examples: Water (H2o) molecule; Carbon dioxide (CO2) molecule.
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Type of molecule that is also a pure substance, because its elements are joined chemically – they can not be broken apart by normal physical means.
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The abbreviations that identify molecules. Examples: Glass – SiO2 – silicon dioxide. Table salt – NaCl – sodium chloride.
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