Element, simple substances that cannot be broken down into simpler substances, Molecule, two or more atoms held together by bonds, Period, Horizontal row on the Periodic Table, Group, vertical column on the Periodic Table; elements in the column share similar properties; also known as a Family, Family, vertical column on the Periodic Table; elements in the column share similar properties; also knows as a Group, Conductivity, the ability of a material to allow either heat or electricity to flow through it, Pure substance, matter that has the same chemical composition throughout and cannot be separated into its parts by physical means; examples: elements and compounds, Solubility, the ability to dissolve in another substance, Malleability, the ability of a substance to be hammered or beaten into thin sheets, Homogeneous Mixture, a mixture in which substances are evenly distributed; example: a solution, milk, sugar water, Atomic Mass, total mass of the protons and neutrons in an atom, measured in atomic mass units. Found at the bottom of element box, Acid, Less than 7 on the pH scalee chemically with another substance, Base, Greater than 7 on the pH scale, Neutral, 7 on the pH scale, Precipitate, A solid that is produced as a result of a chemical reaction in solution, Atomic Number, the number of protons in the nucleus of an atom. Found in top of element box., Heterogenous Mixture, a mixture in which substances are not distributed evenly; example: a salad, pepperoni pizza, dirt, Metalloid, The staircase on the periodic table, Alkali Metal, First column of the periodic table, Alkali Earth Metals, Second column of the periodic table

Chemistry

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