click below
click below
Normal Size Small Size show me how
>Ch4 Vocab<
Mr. Beatty's Vocab HW. This is my FUN(erd) way of studying!
| Question | Answer |
|---|---|
| Alpha Particles | A particle with two protons and two neutrons, with a 2+ charge. Equivalent to Helium -4 nucleus. Represented by (Insert fish-like "a" here) |
| amu | Atomic Mass Unit- 1/12 of the mass of an atom. |
| Atomic Mass | The weighted average mass of the isotopes of a given element. |
| Mass Number | # after an element's name; sum of protons and neutrons |
| Atomic Number | # of protons in an atom. |
| Proton | + Charged Particle in an atom (Duh) |
| Electron | - Charged Particle in an atom (Duh) |
| Beta Particles | A high speed electron with a 1-charge that is emitted during radioactive decay. |
| Gamma Radiation | Has no mass or electrical charge; is not deflected by electric or magnetic fields. Accompanies alpha and beta radiation. |
| Neutrons | Neutral Charged Particle |
| Isotopes | Atoms of the same element with different # of neutrons |
| Nucleus | Extremely small center of an atom. Composes of protons, neutrons, and electrons. Positively charged. |
| Nuclear Equation | Type of equation that shows the atomic # and mass number of the particles involved. |
| Radioactive Decay | Spontaneous process in which unstable nuclei lose energy by emitting radiation. |
| Radioactivity | The process in which some substances spontaneously emit radiation. |