module 2 chapter 5

Question 1

what happens to the size of the s-orbital as the sublevel increases

Answer 1

the size of the s- orbital increases

Question 2

how many D-orbitals are there in a single energy level

Answer 2

5

Question 3

how many F-orbitals are there in a single energy level

Answer 3

7

Question 4

define subshell

Answer 4

orbitals of the same type within a shell

Question 5

what is the purpose of the opposite spin on the electrons in the same orbital

Answer 5

it helps to counteract the repulsion between the two negative charges

Question 6

what order do electrons fill orbitals in

Answer 6

orbitals with the same energy are occupied singly first

Question 7

in what order are the electrons in the 3d and 4s orbitals filled and emptied

Answer 7

4s subshell fills before the 3d

4s subshell empties before the 3d

Question 8

cations

Answer 8

positive ions

Question 9

anions

Answer 9

negative ions

Question 10

structure of ionic compounds

Answer 10

giant ionic lattice

Question 11

what determines the MP/BP of an ionic compound

Answer 11

the charge of the ions that make up the compound

Question 12

why are ionic compounds soluble

Answer 12

polar water molecules break down the lattice and surround each atom in the solution

Question 13

why does the solubility of ionic compounds decrease as attractions within the ionic lattice increase

Answer 13

more energy is needed to break down the lattice therefore less of the lattice is broken down and these strong ionic lattices (such as CaCO3) are less soluble

Question 14

what is a dative covalent bond

Answer 14

a bond in which the shared pair of electrons has been supplied by one of the bonding atoms only

Question 15

define average bond enthalpy

Answer 15

a measurement of covalent bond strength