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>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. |