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Chapter 8 and 10 Voc

Vocabulary for chapters 8 and 10

TermDefinition
Solute Substance whose particles are dissolved in a solution
solvent substance in which the solute dissolves
Dissociation Which an ionic compound separates into ions as it dissolves
Dispersion Breaking into small particles spread throughout the water
Ionization The process in which neutral molecules gain or lose electrons.
Acid A compound that produces hydronium ions when dissolved in water
Indicator Any substance that changes color in the presence of an acid or base
Neutralization reaction between an acid and a base
salt negative ions in an acid produce an ionic compound, this is the coumpound
pH measure of its hydronium ion concentration
electrolyte A substance that ionizes or dissociates into ions when it dissolves in water
Buffer a solution that is resistant to large changes in pH
Radioactivity 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 Charged particles and energy that are 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 occurs naturally in the environment
Strong Nuclear Force The attractive force that binds protons of the nucleus
Fission A nuclear reaction in which an atomic nucleus is slip 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 A process in which the nuclei of two atoms combine to form a larger nucleus
Plasma A state of matter in which atoms have been stripped of their electrons
Base Compound that produces hydroxide ions when dissolved in water
Created by: nathan.cornelius