click below
click below
Normal Size Small Size show me how
Madyson 3-1
Matter and Atomic Structure 3-1
| Question | Answer |
|---|---|
| the smallest particle of an element that has all of the characterisitics of that element | Atom |
| the combined number of protons and neutrons in an atom's nucleus | Atomic Mass |
| the number of protons in an atom's nucleus | Atomic Number |
| has little mass but it has a negative electric charge that is the same magnitude as the postive charge of a proton | Electron |
| a substance that can not be broken down into simpiler substances by physical or chemical means | Element |
| represents the area in an atom where an electron is most likely to be found | Energy Level |
| when atoms of the same element have different mass numbers | Isotope |
| the number of protons and neutrons | Mass Number |
| a particle with about the same mass as a proton but electrically neutral | Neutron |
| made of protons and neutrons | Nucleus |
| a tiny particle that has mass and a postive electric charge | Proton |
| the spontaneus process through which unstable nuclei emit radiation | Radioactivity |
| the outermost electrons | Valence electron |