Chappter 5

Question 1

What is an atomic orbital?

Answer 1

A region around the nucleus which can hold up to 2 electrons with opposite spin

Question 2

What is the shape of the s orbital

Answer 2

Sphere

Question 3

What is the shape of the p sub shell

Answer 3

Dumbbell

Question 4

Which shell fills before the other one ( the important one)

Answer 4

4s fills before 3d (also empties first when ions form)

Question 5

What is an ionic bond

Answer 5

The electrostatic attraction between two oppositely charged ions

Question 6

Describe a giant ionic lattice

Answer 6

A regular arrangement or alternating positive and negative ions. Each positive ion is surrounded by negative ions and each negative ion is surrounded by positive ions

Question 7

Which of the following is normally a ionic compound: CH4 SO2 SiO2 Cu(NO3)2 H2O

Answer 7

Cu(NO3)2 Usually when a compound contains a metal, it is an ionic compound

Question 8

What is a covalent bond

Answer 8

The strongest electrostatic attraction between a shared pair of electrons and the nuclei of two bonded atoms

Question 9

What is average bond enthalpy

Answer 9

Is the energy required to overcome a covalent bond. The stronger the bond, the more energy is required, the greater the value for the average bond enthalpy

Question 10

What is a dative covalent bond

Question 11

What is a dative covalent bond

Answer 11

(The strongest electrostatic attraction between a shared pair of electrons and the nuclei of two bonded atoms) One atom provides both of the shared pair of electrons