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Sookdeo Matter

Nature of Matter

QuestionAnswer
atoms basic unit of matter; source of nuclear energy
molecules smallest unit of most compounds that displays properties of that compound
electron negatively charged particles located in the space surrounding the nucleus
element pure substance that consist of one type of atom; cannot be broken down
isotope single element containing same number of protons but different number of neutrons; can be radioactive
compound substance formed by the chemical combination of two or more elements in definite proportions
ionic bonding chemical bond formed when one or more electrons are transferred from one atom to another
ion atom that has a positive or negative charge
covalent bond bond between atoms where the electrons are shared
van der Waals forces slight attraction between oppositely charged regions of nearby molecules
nucleus positively charged core of an atom containing protons & neutrons
mass body of matter with no definite shape
neutron subatomic particle about the same mass as a proton without an electric charge
proton subatomic particle in atomic nuclei with a positive electric charge
H2O water molecule, two atoms of hydrogen and one atom of oxygen
O2 chemical element with two atoms of oxygen
CO2 chemical compound with one carbon atom and two oxygen atoms
Created by: dsookdeo
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