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Act. #14-17

atom the smallest particle of matter
chemical bond energy connection that holds atoms together to form molecules
chemical formula a shorthand way to identify the types and number of atoms in a molecule
chemical property describes how a substance reacts with another substance
compound two or more different elements chemically bonded together
electron the negatively charged particle found outside the nucleus of an atom
element a substance made of only one kind of atom
family a column of elements on the periodic table that have similar properties
neutron a particle with no charge found in the nucleus of an atom
molecule two or more atoms chemically bonded together
physical property characteristics that are observed or measured without changing the substance
proton the positively charged particle in the nucleus of an atom
material a type of solid matter used to make things
periodic table of elements a way of organizing the elements based on their properties
atomic number the number of protons in an atom
atomic mass the number of protons + the number of neutrons in an atom
Created by: mrspolk



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