U4 Part 1 Test

Question 1

ionic compoud: elements involved

Answer 1

M + NM

Question 2

ionic compoud: electron movements

Answer 2

transferred

Question 3

ionic compoud: structures/physical state at room temp

Answer 3

lattice formation (no individual molecules)
solids

Question 4

ionic compoud: electrical conductivity

Answer 4

low (if solid)
high (if melted or dissolved in water)

Question 5

ionic compound: solubility in water

Answer 5

high (breaks into ions)

Question 6

ionic compoud: melting/boiling point

Answer 6

moderate to high

Question 7

ionic compoud: hardness

Answer 7

hard but brittle

Question 8

covalent compound: elements involved

Answer 8

NM + NM

Question 9

covalent compound: electron movements

Answer 9

shared
NP is 2 same nonmetals
P is 2 diff nonmetals

Question 10

covalent compound: structures/physical state at room temp

Answer 10

individual molecules
solids, liquids, gas

Question 11

covalent compound: electrical conductivity

Answer 11

none

Question 12

covalent compound: solubility in water

Answer 12

low (stays as molecules)

Question 13

covalent compound: melting/boiling point

Answer 13

low

Question 14

covalent compound: hardness

Answer 14

hard but brittle (as solids)

Question 15

metallic bonds: elements involved

Answer 15

M + M

Question 16

metallic bonds: electron movements

Answer 16

delocalized electrons

Question 17

metallic bonds: structures/physical state at room temp

Answer 17

sea of electrons around metal ions
solids

Question 18

metallic bonds: electrical conductivity

Answer 18

high

Question 19

metallic bonds: solubility in water

Answer 19

very low

Question 20

metallic bonds: melting/boiling point

Answer 20

variable

Question 21

metallic bonds: hardness/other characteristics

Answer 21

often malleable
ductile
lustrous

Question 22

delocalized electrons meaning

Answer 22

electrons are spread throughout the solid, they don’t belong to a certain molecule

Question 23

how many electrons are in a single bond

Answer 23

2

Question 24

how many electrons are in a double bond

Answer 24

4

Question 25

how many electrons are in a triple bond

Answer 25

6

Question 26

Hydrogen and Flourine can only have ___ bond, therefore they have to be ___ atoms

Answer 26

one, outside

Question 27

Octet rule

Answer 27

atoms tend to gain, lose, or share electrons until they are surrounded by 8 valence electrons

Question 28

What elements only need 2 valence electrons to be happy?

Answer 28

H, He, Li

Question 29

(length) single bond is the___

Answer 29

longest

Question 30

(length) double bond is ___

Answer 30

longer than triple bond

Question 31

(length) triple bond is the ___

Answer 31

shortest

Question 32

(strength) single bond is the ____

Answer 32

weakest

Question 33

(strength) double bond is ___

Answer 33

stronger than single bond

Question 34

(strength) triple bond is the ___

Answer 34

strongest

Question 35

which atom is central

Answer 35

the least electronegtaive one

Question 36

what are the electron deficient atoms that don’t have enough electrons to form an octet?

Answer 36

B and Be

Question 37

Expanded octets are ____ in the __ period and beyond. They can accommodate more than an octet of electrons

Answer 37

nonmetals, third

Question 38

What bond can Cl only have?

Answer 38

single

Question 39

Polar covalent bonds have ____ shared electrons

Answer 39

unequally

Question 40

Non polar covalent bonds have ___ electrons

Answer 40

shared

Question 41

the goal of all atoms is to gain ____. They do this by forming _____.

Answer 41

stability, bonds

Question 42

A metalloid + nonmetal is also a _____ bond

Answer 42

covalent

Question 43

a metal + polyatomic ion is also a ____ bond

Answer 43

ionic