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Chp. 8 and 10 vocab
Mikayla Milford
| Term | Definition |
|---|---|
| solute | is a substance whose particles are dissolved in a solution |
| solvent | when the solute dissolves |
| dissociation | a process in which an ionic compound separates into ions as it dissolves |
| dispersion | when water dissolves |
| ionization | when neutral molecules gain or lose electrons |
| 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 |
| neutralization | the reaction between an acid and a base |
| acid | is a compound that produces hydronium ions when dissolved in water |
| salt | the negative ions in an acid combine with the positive ions in a base to produce an ionic bond |
| 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 ans energy |
| radioisotope | any atom containing an unstable nucleus |
| nuclear radiation | is charged particles and energy that are emitted from the nuclei of radiotopes |
| alpha particle | is a positively charged particle made up of two protons and two neutrons |
| beta particle | is an electron emitted by an unstable nucleus |
| gamma ray | is a penetrating ray of energy emitted by and unstable nucleus |
| background radiation | or nuclear radiation that occurs naturally in the environment |
| strong nuclear force | is the attraction force tat binds protons and neutrons together in the nucleus |
| fission | is the splitting of an atomic nucleus into 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 the state of matter in which an atom has been stripped of its electrons |