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Chapter 8-10 Vocab
Chapter 8 through 10 vocab
| Term | Definition |
|---|---|
| Solute | Substance whose particles are dissolved in a substance. |
| Solvent | Substance in which a substance dissolves |
| Dissociation | ionic compound separates into ions as it dissolves |
| Dispersion | Sugar dissolves in water by dispersion |
| Ionization | Process in which neutral molecules gain or lose electrons |
| Acid | Compound that produces hydronium ions |
| Indicator | Substance that changes color in the presence of an acid or base. |
| Base | Compound producing hydroxide ions |
| Neutralization | Reactions between an acid and a base |
| Salt | Negative ions in acid combine with positive ions in a base |
| pH | Measure of hydronium ion concentration |
| Buffer | solution resistant to large changes of pH |
| Electrolyte | Substance that ionizes or dissociates into ions when dissolved into water |
| Radioactivity | Process in which an unstable atomic nucleus emits charged particles |
| Radioisotope | Atom contain an unstoppable nucleus is called radioactive isotope. |
| Nuclear radiation | Charged particles and energy that are emitted from the nucli of radioisotopes |
| Alpha Particles | Positively charged particle made up of two protons |
| Beta Particle | Particle emitted by an unstable nucleus |
| Gamma Ray | Penetrating ray of energy by and unstable nucleus |
| Background Radiation | Radiation that occurs in nature |
| Strong nuclear force | Attractive force that binds protons and neutrons together in the nucleus. |
| fission | A nuclear reaction in which the atomic nucleus is split into two smaller parts |
| chain reaction | Neutrons released during the splitting of an initial nucleus trigger a series of nuclear fissions |
| critical mass | Smallest possible mass of a fissionable material that can sustain chain reaction. |
| fusion | Process of when a nuclei of two atoms combine to form a larger nucleus |
| plamsa | State of matter where atoms have been stripped of electrons |