click below
click below
Normal Size Small Size show me how
JCMS Chemistry 8
JCMS -Introduction to Atoms
| Question | Answer |
|---|---|
| atom | smallest particle of an element, can't be broken down |
| element | substance that can't be broken into other substances by chemical or physical means |
| nucleus | tiny central core of the atom |
| subatomic particle | particles smaller than the atom that combine to form the atom |
| protons | positively charged subatomic particle that determines an elements identity |
| electrons | negatively charged subatomic particle that is found outside the nucleus of an atom |
| neutrons | a subatomic particle with no charge (NEUTRAL)found in the nucleus of an atom |
| nucleus | the dense center of an atom containing the protons and neutrons |
| atomic mass | the average mass of an atom protons + neutrons |
| atomic number | the number of protons found in the nucleus of an atom |