Module 2: Section 2 Electrons bonding and structure

Question 1

How many electrons do full s,p and d sub-shells contain?

Answer 1

S-2
P-6
D-10

Question 2

What is an atomic orbital?

Answer 2

Space in which electron moves in

Question 3

Draw diagrams showing the shape of S and P orbitals

Answer 3

S - Sphere

P - Dumbbell

Question 4

Write down the sub shells in order of increasing energy up to 4p

Answer 4

1s2 , 2s2 ,2p6 , 3s2 , 3p6 , 4s2 , 3d10 , 4p6

Question 5

How do ions form?

Answer 5

When electrons are transferred from one atom to another

Question 6

What is an ionic bond?

Answer 6

Electrostatic attraction between 2 oppositely charged ions

Question 7

How does the value of average bond enthalpy change as bond strength increases?

Answer 7

The stronger a bond the more energy needed to break it so the greater the bond enthalpy becomes

Question 8

What is a dipole?

Answer 8

Difference in charge between the 2 atoms caused by a shift in electron density

Question 9

What atoms must be covalently bonded to H for hydrogen bonding to exist?

Answer 9

Nitrogen,
Oxygen
Fluorine