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chapter 2 part 1

Essential Chemistry for Biology

TermDefinition
Acid A substance that increases the hydrogen ION (H+) concentration in a solution.
Aqueous Solution A solution in which the water is the solvent.
Atom The smallest unit of matter that retains the properties of an element.
Atomic Number The number of protons in each of a particular element
Base A substance that decreases the hydrogen ion (H+) concentration in a solution.
Chemical Bond An attraction between two atoms resulting from a sharing of outer-shell electrons or the presence of opposite charges on the atoms. The bonded atoms gain complete outer electron shells.
Chemical Reaction A process leading to chemical changes in matter, involving the making and/or breaking of chemical bonds.
Cohesion The attraction between molecules of the same king
Compound A substance containing 2 or more elements in a fixed ratio.
Covalent Bond An attraction between atoms that share 1 or more pairs of outer-shell electrons.
Electron A subatomic particle with a single unit of negative electrical charge. One or more electrons more around the nucleus of an atom.
Element A substance that cannot be broken down to other substance by chemical means.
Hydrogen Bond A type of Weak chemical bond formed when the partially positive hydrogen atom participation in a polar covalent bond in another molecule (or in another part of the same macro molecule)
Ion An atom or molecule that has gained or lost one or more electons thus acquiring an electrical charge
Ionic bond An attraction between two ions with opposite electrical charges the electrical attraction of the opposite charges holds the ions together.
Created by: felmouchtari