Chapter 5 Study Guide

Question 1

electrons that have the highest energy level and are held most loosely

Answer 1

valence electron

Question 2

includes the symbol for the element surrounded by dots

Answer 2

electron dot diagram

Question 3

the force of attraction that holds two atoms together as a result of the rearrangement of electrons between them

Answer 3

chemical bond

Question 4

an atom or group of atoms that has an electric charge

Answer 4

ion

Question 5

more than one atom; group of atoms that reacts as a unit

Answer 5

polyatomic ion

Question 6

the attraction between two oppositely charged ions

Answer 6

ionic bond

Question 7

a compound that consists of positive and negative ions, such as sodium chloride

Answer 7

ionic compound

Question 8

a combination of symbols that shows the ratio of elements in a compound

Answer 8

chemical formula

Question 9

tells you the ratio of elements in the compounds

Answer 9

subscript

Question 10

an orderly, three-dimensional arrangement made by ions together

Answer 10

crystal

Question 11

the chemical bond formed when two atoms share electrons

Answer 11

covalent bond

Question 12

a neutral group of atoms joined by covalent bnds

Answer 12

molecule

Question 13

where two atoms share two pairs of electrons

Answer 13

double bond

Question 14

where atoms share three pairs of electrons

Answer 14

triple bond

Question 15

a compound that is composed of molecules

Answer 15

molecular compound

Question 16

a covalent bond in which electrons are shared unequally

Answer 16

polar bond

Question 17

a covalent bond in which electrons are shared equally

Answer 17

nonpolar bond

Question 18

a mixture made of two or more elements

Answer 18

alloy

Question 19

an attraction between a positive metal ion and the many electrons surrounding it

Answer 19

metallic bond