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Chapter 8 and 10 voc
| Term | Definition |
|---|---|
| solute | a substance that dissolves in a solution |
| solvent | the solution that the solute dissolves in |
| dissociation | the process in which an ionic compound separates into ions as it dissolves is called dissociation |
| dispersion | breaking in to smaller pieces |
| ionization | neutral molecules gain or lose electrons. |
| acid | have certain chemical and physical properties that are similar. |
| indicator | is any substance that changes color in the presence of and acid of base. |
| base | is a compound that produces hydroxide ions. |
| neutralization | the reaction between a acid and a base. |
| salt | the product of neutralization. |
| pH | of a solution is a measure of its hydronium ion concentration. |
| buffer | a buffer is a solution that is resistant to large changes in pH |
| electrolyte | a substance that ionizes into ions when it dissolves in water. |
| radioactivity | is the process in which an unstable atomic nucleus emits charged particles. |
| radioisotope | Any atom containing an unstable nucleus is called a radioactive isotope. |
| nuclear radiation | is charged particles and energy that is emitted from the nuclei of radioisotopes. |
| alpha particle | a positively charged particle made up of two protons and two neutrons. |
| beta particle | an electron emitted by an unstable nucleus. |
| gamma ray | a penetrating ray of energy emitted by an unstable nucleus. |
| background radiation | nuclear radiation that happens naturally. |
| strong nuclear force | the attractive force that binds protons and electrons together in a nucleus. |
| fission | 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 | 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 of matter in which atoms have been stripped of their electrons |