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7th CK COOL CHEM 2

7th CK SCIENCE - COOL CHEMISTRY PART 2 COMPLETE

TermDefinition
Matter made of molecules; Latin for “little mass”; anything that has mass and takes up space (surface area and volume)
Matter made of molecules; Latin for “little mass”; anything that has mass and takes up space (surface area and volume)
Metalloids have characteristics of both metals and nonmetals
Metals ductile, malleable, good conductors, lustrous
Mixture substance made of heterogeneous molecules that are not bonded together chemically; mixtures can be homogeneous or heterogeneous
Molecule more than one atom joined together: can be same or different atoms: O3 or H2O
Neutron particles with no charge located in the atomic nucleus
Nonmetals opposite characteristics of metals
Nucleus makes up most of an atom’s mass; location of protons and neutrons
Oxidation occurs when an atom loses an electron
Period a horizontal row on the periodic chart
pH stands for percent Hydrogen. pH is measured by an indicator that changes color depending on whether an acid or base is present.
Plasma form of matter with indefinite shape and volume and electrically charged molecules
Products found to the right of the yield sign – elements and compounds after a chemical change has taken place
Protons positively charged particles located in the atomic nucleus
Reactants found to the left of the yield sign – elements and compounds before a chemical change has taken place
Reduction occurs when an atom gains electrons
Solid form of matter with definite shape and volume
Subscript number placed below and after a chemical symbol; tell the number of atoms of that element that are present
Valence electrons outermost electrons used in bonding
Created by: artisteacher