AP Bio Chapter 2 Flashcards

The smallest unit of matter that retains the properties of an element.

An atom's central core, containing protons and neutrons.

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

<p>The total atomic mass, which is the mass in grams of one mole of the atom.</p> Signup and view all the answers

<p>An ion with a positive charge</p> Signup and view all the answers

<p>An attraction between two atoms resulting from a sharing of outer-shell electrons.</p> Signup and view all the answers

<p>The point at which the rate of the forward reaction equals the rate of the reverse reaction.</p> Signup and view all the answers

<p>A process leading to chemical changes in matter.</p> Signup and view all the answers

<p>A substance consisting of two or more elements in a fixed ratio.</p> Signup and view all the answers

<p>A type of strong chemical bond in which two atoms share one pair of valence electrons.</p> Signup and view all the answers

<p>A measure of mass for atoms and subatomic particles.</p> Signup and view all the answers

<p>A type of covalent bond in which two atoms share two pairs of electrons.</p> Signup and view all the answers

<p>An energy level representing the distance of an electron from the nucleus of an atom.</p> Signup and view all the answers

<p>A subatomic particle with a single negative charge.</p> Signup and view all the answers

<p>The attraction of an atom for the electrons of a covalent bond.</p> Signup and view all the answers

<p>Any substance that cannot be broken down to any other substance.</p> Signup and view all the answers

<p>The different states of potential energy for electrons in an atom.</p> Signup and view all the answers

<p>The capacity to do work.</p> Signup and view all the answers

<p>A type of weak chemical bond formed when a slightly positive hydrogen atom is attracted to a slightly negative atom.</p> Signup and view all the answers

<p>An atom that has gained or lost electrons, thus acquiring a charge.</p> Signup and view all the answers

<p>A chemical bond resulting from the attraction between oppositely charged ions.</p> Signup and view all the answers

<p>Compounds resulting from the formation of ionic bonds.</p> Signup and view all the answers

<p>One of several atomic forms of an element, each containing a different number of neutrons.</p> Signup and view all the answers

<p>The sum of the number of protons and neutrons in an atom's nucleus.</p> Signup and view all the answers

<p>Anything that takes up space and has mass.</p> Signup and view all the answers

<p>A type of molecular notation indicating only the quantity of the constituent atoms.</p> Signup and view all the answers

<p>Two or more atoms held together by covalent bonds.</p> Signup and view all the answers

<p>An electrically neutral particle found in the nucleus of an atom.</p> Signup and view all the answers

<p>A type of covalent bond in which electrons are shared equally between two atoms.</p> Signup and view all the answers

<p>The energy stored by matter as a result of its location or spatial arrangement.</p> Signup and view all the answers

<p>An ending material in a chemical reaction.</p> Signup and view all the answers

<p>A subatomic particle with a single positive electrical charge.</p> Signup and view all the answers

<p>An isotope that is unstable and decays spontaneously.</p> Signup and view all the answers

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

<p>Compounds resulting from the formation of ionic bonds.</p> Signup and view all the answers

<p>A type of molecular notation in which the constituent atoms are joined by lines representing covalent bonds.</p> Signup and view all the answers

<p>An element indispensable for life but required in extremely minute amounts.</p> Signup and view all the answers

<p>The electrons in the outermost electron shell.</p> Signup and view all the answers

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

<p>The bonding capacity of an atom generally equal to the number of unpaired electrons.</p> Signup and view all the answers

<p>Weak attractions between molecules or parts of molecules.</p> Signup and view all the answers