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Flashcards in Chapter 3 Deck (29):
1

anion

A negatively charged ion

2

binary compound

A compound made from two elements

3

bonding electron pair

A pair of valence electrons that is shared by two atoms and that holds the atoms close to each other

4

cation

A positively charged ion

5

Chemical bond

An attractive force that holds atoms together in a chemical compound

6

Covalent bond

A chemical compound that is formed by the sharing of two electrons between two atoms

7

double bond

a covalent bond in which four elections are shared between two atoms

8

electronegativity

A measure of the attraction of an element for electrons

9

ion

An aotm or group of atoms in which the numbers of protons and electrons are different

10

ionic compound

A chemical compound that is made from ions

11

molecule

An electrically neutral group of atoms held together by covalent bonds

12

monatomic ion

An ion that consists of a single charged atom

13

nonbonding electron pair

A pair of valence electrons that is not shared with another atom

14

nonpolar covalent bond

a covalent bond in which neither atom has an electrical charge

15

octet rule

the tendency of atoms to have 8 valence electrons when they form molecules or ions.

16

polar covalent bond

a covalent bond in which the bonding electrons are shared unequally

17

polyatomic ion

an ion that contains more than one atom

18

rule of charge balance

the rule that any ionic compound have equal amounts of positive and negative charge.

19

single bond

A covalent bond in which two atoms share one pair of electrons

20

triple bond

A covalent bond in which 6 electrons are shared between two atoms

21

stoichiometry

The study of the mass-mole-number relationships of chemical formulas and reactions

22

reactant

A starting substance in a chemical reaction

23

product

A substance formed in a chemical reaction

24

chemical equation

A statement that uses chemical formulas to express the identities and quantities of the substances involved in a chemical or physical change.

25

structural formula

A formula that shows the actual number of atoms, their relative placement, and the bonds between them.

26

combustion analysis

A method for determining the formula of a compound from the amounts of its combustion products.

27

isomer

One of two or more compounds with the same molecular formula but different properties, often as a result of different arrangements of atoms

28

empirical formula

A chemical formula that shows the lowest relative number of atoms of each element in a compound

29

molecular formula

A formula that shows the actual number of atoms of each element in molecule of a compound