Chemistry Terms Flashcards

The smallest unit of matter composed of protons, neutrons, and electrons.

The center of an atom composed of protons and neutrons.

<p>A positively charged subatomic particle.</p> Signup and view all the answers

<p>A negatively charged subatomic particle.</p> Signup and view all the answers

<p>A subatomic particle with no charge.</p> Signup and view all the answers

<p>A pure substance made from only one type of atom.</p> Signup and view all the answers

<p>The number of protons in an atom.</p> Signup and view all the answers

<p>The mass of an atom calculated by adding the number of protons plus the number of neutrons.</p> Signup and view all the answers

<p>A substance made by chemically combining two or more atoms.</p> Signup and view all the answers

<p>A bond created when electrons are donated between atoms, creating opposite charges.</p> Signup and view all the answers

<p>A bond created when electrons are shared between the valences of two atoms.</p> Signup and view all the answers

<p>A bond where electrons are shared unevenly between the valences of two atoms.</p> Signup and view all the answers

<p>The principle that states that the most stable configuration for a valence is to have eight electrons.</p> Signup and view all the answers

<p>The outermost energy level of an atom.</p> Signup and view all the answers

<p>A charged atom or compound created by adding or losing electrons.</p> Signup and view all the answers

<p>Forms of an atom with different numbers of neutrons.</p> Signup and view all the answers

<p>A positively charged ion.</p> Signup and view all the answers

<p>A negatively charged ion.</p> Signup and view all the answers

<p>A bond created when a hydrogen in a polar bond attracts to a nearby electronegative atom.</p> Signup and view all the answers

<p>Attractions between molecules due to temporary dipoles.</p> Signup and view all the answers

<p>The substance that is dissolved in a solution.</p> Signup and view all the answers

<p>The substance that dissolves the solute in a solution.</p> Signup and view all the answers

<p>A measure of how well a substance absorbs heat energy.</p> Signup and view all the answers

<p>A substance that releases hydrogen ions in a solution; lowers pH of the solution.</p> Signup and view all the answers

<p>A substance that accepts hydrogen ions or releases hydroxide ions in a solution; raises pH of the solution.</p> Signup and view all the answers

<p>A substance that converts strong acids or bases to weak ones.</p> Signup and view all the answers

<p>The starting materials in a chemical reaction.</p> Signup and view all the answers

<p>A reaction that breaks molecules down and breaks chemical bonds.</p> Signup and view all the answers

<p>A reaction that builds molecules and forms chemical bonds.</p> Signup and view all the answers

<p>A reaction that absorbs energy.</p> Signup and view all the answers

<p>A reaction that releases energy.</p> Signup and view all the answers

<p>The tendency of an atom to draw electrons to itself.</p> Signup and view all the answers