Biology Quiz 2 Unit 2

Front 1

negatively charged ion

Back 1

anion

Front 2

positively charged ion

Back 2

cation

Front 3

union between atoms by the interaction of their electrons in their outermost orbit

Back 3

chemical bond

Front 4

when the atoms of elements or compounds interact to form at least one new compound

Back 4

chemical reaction

Front 5

an electrically charged atom or group of atoms formed by the gain or loss of electrons

Back 5

ion

Front 6

a bond formed by the electrical attraction between two oppositely charged ions

Back 6

ionic bond

Front 7

the number of electrons an element must gain or lose in order to complete its outer electron shell

Back 7

valence

Front 8

electrons tend to exist in the __________ energy level possible

Back 8

lowest

Front 9

if energy is supplied and an electron jumps to a higher level of energy, it is in a(n) __________ state

Back 9

excited

Front 10

atoms with ________ outermost levels or _______ octet levels cannot participate in chemical reactions

Back 10

filled, unstable

Front 11

chemical reactions are the result of an atom trying to _______________ its configuration to result in a _________ outer energy level

Back 11

rearrange, complete

Front 12

any substance which donates a hydrogen atom during disassociation

Back 12

acid

Front 13

any substance capable of combing with hydrogen; it normally donates a hydroxyl

Back 13

base

Front 14

an intermolecular force (attraction) occurring between a hydrogen atom and fluorine, oxygen, and nitrogen atoms

Back 14

hydrogen bond

Front 15

a water molecule is held together by a(n) ______________

Back 15

covalent bond

Front 16

a chemical compound not containing carbon

Back 16

inorganic

Front 17

any chemical compound containing carbon

Back 17

organic

Front 18

a measure of the hydrogen ion concentration in a solution

Back 18

pH

Front 19

the compound form of the ionic bonding of a cation and an anion

Back 19

salt

Front 20

a substance which is dissolved in a liquid

Back 20

solvent

Front 21

inorganic compounds are normally held together by _______ bonds

Back 21

ionic