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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 |