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Chem 1010 Module 1
Vacabulary for Chem 1010 Module 1
Term | Definition |
---|---|
Science | a systematic study of something using observations and experiments |
chemistry | the study of matter and the changes it undergoes |
matter | anything which has mass and takes up space |
atom | the tiny particles that all matter is made of |
nucleus | the center of an atom containing the protons and neutrons |
proton | an elementary particle found in the nucleus of an atom |
neutron | an elementary particle found in the nucleus of an atom |
electron | an elementary particle surrounding the nucleus of an atom |
elements | different kinds of atoms |
chemical bond | a force holding two atoms together |
molecule | two or more atoms held together by chemical bonds which are separate from other groups of atom |
ion | an atom with a charge |
compound | two or more atoms of different elements held together by chemical bonds in a pattern |
diatomic molecule | a molecule containing only two atoms |
chemical reaction | a process in which chemical bonds are broken and new ones are formed |
reactants | elements or compounds present before a chemical reaction takes place |
products | elements or compounds present after a chemical reaction has occurred |