DAT chapter 3 molecular structure and geometry

Question 1

ionic bond properties

Answer 1

high melting point, high boiling point, brittle hard

Question 2

what keeps ionic together

Answer 2

ionic interactions

Question 3

molecular bond properties

Answer 3

low melting point, do not conduct electricity

Question 4

what keeps molecular bonds together

Answer 4

intermolecular forces

Question 5

network covalent bond properties

Answer 5

high melting point, high boiling points, hard, do not conduct electrictity

Question 6

What keeps network covalent bonds together

Answer 6

network of covalent bond

Question 7

Example of network covalent

Answer 7

diamond, graphite, sio2

Question 8

Metallic bonds properties

Answer 8

variable hardness and melting points, conduct electricity, conduct heat, lustrous (shiny)

Question 9

What keeps metallic bonds together

Answer 9

metallic bonding

Question 10

What is lattice energy

Answer 10

energy required to completely separate an ionic compounds cations from its anion

Question 11

Lattice energy

larger charges=

Answer 11

larger charges = larger lattice energy

Question 12

Lattice energy

shorter bond distance (smaller ions) =

Answer 12

larger lattice energy

Question 13

Formal charge formula

Answer 13

Formal charge = V.E - bats - balls

Question 14

ionic (metal and nonmetal) exception

Answer 14

nh4 no3- po43- so42-

Question 15

How to check if a molecule is polar

Answer 15

molecule is polar if there are diff terminal atoms or lone pair around central atom.
Either one checks off, then it’s polar