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Danielle Easterday
Ch 8 and Ch 10 Vocab.
| Term | Definition |
|---|---|
| Solute | Is a substance whose particles are dissolved in a solution. |
| Solvent | Is the substance in which a solute dissolves in. |
| Dissociation | The process in which an ionic compound separates into ions as it dissolves. |
| Dispersion | The breaking of objects into small pieces that spread throughout the water. |
| Ionization | The process in which neutral molecules gain or lose electrons. |
| Acid | Is a compound that produces hydronium ions when dissolved in water. |
| Indicator | Is any substance that changes color in the presence of an acid or base. |
| Base | Is a compound that produces hydroxide ions when dissolved in water. |
| Neurtralization | The reaction between an acid and a base. |
| Salt | During neutralization, the negative ions in an acid combine with the positive ions in a base to produce an ionic compound. |
| pH | Is a measure of its hydronium ion concentration. |
| Buffer | Is a solution that is resistant to large changes in pH. |
| Electrolyte | Is a substance that ionizes or dissociates into ions when it dissolves in water. |
| Radioactivity | Is the process in which an unstable atomic nucleus emits charged particles and energy. |
| Radioisopte | Is any atom containing an unstable nucleus. |
| Nuclear Radiation | Is charged particles and energy that are emitted from the nuclei of radioisotopes. |
| Alpha Particle | Is a positively charged particle made up of two protons and two neutrons-the same as a helium nucleus. |
| Beta Particle | Is an electron emitted by an unstable nucleus. |
| Gamma Ray | Is a penetrating ray of energy emitted by an unstable nucleus. |
| Background Radiation | Nuclear radiation that occurs naturally in the environment. |
| Strong Nuclear Force | Is the attractive force that binds protons and neutrons together in the nucleus. |
| Fission | Is the splitting of an atomic nucleus into two smaller parts. |
| Chain Reaction | Neutrons released during the splitting of an initial nucleus trigger a series of nuclear fissions. |
| Critical Mass | Is the smallest possible mass of a fissionable material that can sustain a chain reaction |
| Fusion | Is a process in which the nuclei of two atoms combine to form a larger nucleus. |
| Plasma | Is a state in which atoms have been stripped of their electrons. |