test- chemical bonding

Question 1

chemical bond

Answer 1

-an attractive force between atoms or ions
-binds them together

Question 1

why do atoms bond?

Answer 1

-to decrease potential energy
-to increase stability

Question 2

valence electrons

Answer 2

-electrons in the outermost energy level or shell

Question 3

ve- in group 1

Answer 3

1

Question 4

ve- in group 2

Answer 4

2

Question 5

ve- in group 13

Answer 5

3

Question 6

ve- in group 14

Answer 6

4

Question 7

ve- in group 15

Answer 7

5

Question 8

ve- in group 16

Answer 8

6

Question 9

ve- in group 17

Answer 9

7

Question 10

ve- in group 18

Answer 10

8

Question 11

what is the exception to the ve- group rules?

Answer 11

-helium
-has 2 ve-

Question 12

ionic compound

Answer 12

-composed of postive ad negative inos
-combined so that the postive and negative charges are equal (neutral net charge)
-occurs between the metal and nonmetal
-involve the transfer of electrons between atoms

Question 13

formula unit

Answer 13

-the simplest whole number of ions in an ionic compound

Question 14

ionic charge of group 1

Answer 14

+1

Question 15

ionic charge of group 2

Answer 15

+2

Question 16

ionic charge of group 13

Answer 16

+3

Question 17

ionic charge of group 15

Answer 17

-3

Question 18

ionic charge of group 16

Answer 18

-2

Question 19

ionic charge of group 17

Answer 19

-1

Question 20

ionic charge of group 18

Answer 20

0

Question 21

covalent bond

Answer 21

-bond between nonmetal and nonmetal
-sharing electrons between two ites
-either polar or nonpolar

Question 22

molecule

Answer 22

-a neutral group of atoms that are held together by covalent bonds

Question 23

molecular compound

Answer 23

-a chemical compound whose simplest units are molecules

Question 24

chemical formula

Answer 24

-show the type of number of atoms in the smallest representative unit of a compound

Question 25

molecular formula

Answer 25

-shows the types of numbers of atoms combined in a single molecule of a molecular compound

Question 26

polar

Answer 26

-unequally sharing electrons

Question 27

nonpolar

Answer 27

-equally sharing electrons

Question 28

single covalent bond

Answer 28

-shares 1 pair ve- -long bond length -lowest reactivity

Question 29

double covalent bond

Answer 29

-chares 2 pair ve- -meduim length -intermediate strength -medium reactivity

Question 30

triple covalent bond

Answer 30

-shares 3 pair ve- -short bond length -high reactivity

Question 31

metallic bonding

Answer 31

-valence electrons are delocalized/ free -don't belong to one atom -move in what is called the "sea of electrons"

Question 32

ionic compounds exist as... (state of matter)

Answer 32

-crystalline solid

Question 33

crystal lattice

Answer 33

-3d network of postive and negative ions -mutually attracted to one another

Question 34

ionic bond properties

Answer 34

-high melting points -high boiling points -solid at room temperature -hard but brittle and rigid -conductors of electricity in molten state or dissolved -metal and nonmetal elements involve -high bond strength

Question 35

why do ionic bonds have the properties they do?

Answer 35

-they have extremely strong chemcial bonds

Question 36

polar covalent bond properties

Answer 36

-low melting point -low boiling point -sometimes conduct electricity -liquid, gas, or solid -two nonmetals involved -soluble with water -relatively high bond strength

Question 37

where are nonmetals located on the periodic table?

Answer 37

-right side

Question 38

where are metals located on the periodic table?

Answer 38

-left side

Question 39

what type of ions to metals form?

Answer 39

-cations (positive)

Question 40

what type of ions do nonmetals form?

Answer 40

-anions (negative)

Question 41

linear

Answer 41

-flat structure -formed by two single elements in a straight line

Question 42

triginal planar

Answer 42

-formed by 3 elements -flat

Question 43

triginal pyramidal

Answer 43

-formed by 3 elements with extra electrons on the middle

Question 44

tetrahedral

Answer 44

-formed by 4 bonds

Question 45

triginal bypyramidal

Answer 45

-formed by 5 elements

Question 46

octohedral

Answer 46

-formed by 6 elements

Question 47

bent

Answer 47

-formed by 3 elements with extra electrons on the middle that bend it