Bonding

Question 1

Electronegativity difference of an ionic bond

Answer 1

1.7 or greater

Question 2

Properties of ionic bonds

Answer 2

Strong
Hard crystal structures
High melting points
Solids

Question 3

When are ionic cmpds good conductors

Answer 3

When they are dissolved in water (NOT AS SOLIDS)

Question 4

What must be true for a substance to be a good conductor.

Answer 4

The substance must be free of charged particles

Question 5

Oxidation state for fluorine (F)\

Answer 5

+2 or +3

Question 6

Oxidation state for nickel (Ni)

Answer 6

+2 or +3

Question 7

Oxidation state for copper (Cu)

Answer 7

+1 or +2

Question 8

Oxidation state for gold (Au)

Answer 8

+1 or +3

Question 9

Oxidation state for tungsten (W)

Answer 9

+6

Question 10

Oxidation state for zinc (zn)

Answer 10

+2

Question 11

Oxidation state for silver (Ag)

Answer 11

+1

Question 12

Oxidation state for cadmium (Cd)

Answer 12

+2

Question 13

Oxidation state for Aluminum (Al)

Answer 13

+3

Question 14

Oxidation state for Boron (B)

Answer 14

+3

Question 15

Old system name for iron

Answer 15

Ferr

Question 16

Old system name for nickle

Answer 16

Nice

Question 17

Old system name for copper

Answer 17

Cup

Question 18

Old system name for gold

Answer 18

Aur

Question 19

Old system for naming ionic cmpds: suffix for higher of the oxidation states

Answer 19

-ic

Question 20

Old system for naming ionic cmpds: suffix for lower of the oxidation states

Answer 20

-ous

Question 21

Covalent bonds

Answer 21

Bond between 2 or more nonmetals only

Question 22

Electronegativity difference of covalent bonds

Answer 22

1.7 or less

Question 23

Properties of covalent bonds

Answer 23

Weaker bonds than ionic
Lower melting\ boiling points
Softer cmpds
Could be solid liquid or gas
POOR conductor in all phases

Question 24

Polar bonds form….

Answer 24

Molecules or molecular compounds (same thing)

Question 25

Polar covalent bonds

Answer 25

Unequal sharing of electrons between dif nonmetals

Question 26

Non-polar covalent bonds

Answer 26

Equal sharing of electrons between the same nonmetal

DIATOMIC ELEMENTS

Question 27

The more polar the bond is the more…

Answer 27

Ionic it acts

Question 28

Ionic bond

Answer 28

Bond between a metal and a nonmetal

Poly atomic ions

Question 29

Polar molecule

Answer 29

Unequal distribution of electrons
Asymmetrical
Results in dipoles

Question 30

Non-polar molecule

Answer 30

Equal distribution of atoms around molecule
Symmetrical
No dipoles

Question 31

Coordinate covalent bonds

Answer 31

A bond in which one of the bonding atoms comes with no valence electrons to share known as a “free loader”

Only 1 can form and its usually a H+ ion

H3O+
NH4+

Question 32

Network solids

Answer 32

Complete covalent bonds

Question 33

Elements that have expanded octet

Answer 33

Al, Si*, P , S

Question 34

Elements with an incomplete (limited) octet

Answer 34

Li, Be, B*

Question 35

Substances with both ionic and covalent bonds have

Answer 35

Polyatomic ions

Question 36

Metallic bonds

Answer 36

1 metal all alone
Hold atoms of the same metal together
“Cations immersed in a sea of mobile electrons”

Question 37

Properties of metallic bonds

Answer 37

Strong bonds
Hard
High mp
Solid (except hg)
Conduct electricity in solid and liquid phase

Question 38

Hydrogen bonding

Answer 38

A positive to negative attraction between the same polar molecules

Positive dipoles attract negative

Question 39

What molecules have hydrogen bonds

Answer 39

H2O, HF, NH3

Question 40

Dipole - dipole attraction

Answer 40

Attraction between the same polar molecule

Question 41

Van Der Waals forces / London dispersion forces

Answer 41

Weakest force of attraction
Exists in non polar molecules and noble gases
Based on temporary dipoles created by a temporary shift in electrons