Electronic stucture

Question 1

What is Ionisation Energy

Answer 1

It is the energy required to remove an electron

Question 2

1st Ionisation Energy

Answer 2

Energy required to remove 1 mole of electrons from 1 mole of gaseous atom

C(g) → C+(g) + e-

Question 3

2nd Ionisation Energy

Answer 3

The energy required to remove 1 mole of electrons from 1 mole of gaseous 1+ ion.

C(+g) → C2+(g) + e-

Question 4

Successive Ionisations Energies

Answer 4

The energy required to remove 1 mole of electrons from 1 mole of gaseous n+ Ions to form (n+1) Ions

Question 5

Why do elements have different ionisation energies?

Answer 5

The Further away the electron is from the necleus, the easier to remove the elctron

Successive ionisation energies increases

But not unifromly - there are large jumps in ionisation energy

Question 6

Ionisation energies ability to remove an electron depends on….?

Answer 6

1) The nuclear charge - Proton
2) The electron shielding effect - *Shielding *
3) The distance of the outermost electron from the nucleus - Radius

SRP

Shielding(swearing) Radius(Ring finger) Proton(Pinky)

Question 7

What are the three factors affecting the Ionisation energy of a Element

Answer 7

P- Protons - The more protons you have the more ionisation energy. If the protons increases the ionisation energy increases.
(Pinky)
R- Radius- As you increase the radius, you decrease the ionisation energy
(Ring)
S- Shielding - As you increase the shileding the outer electron is going to be less attracted to the nucleus, therefore the ionisation increases.
(Swearing)

Question 7

What are the three factors affecting the Ionisation energy of a Element

Answer 7

P- Protons - The more protons you have the more ionisation energy. If the protons increases the ionisation energy increases.
(Pinky)
R- Radius- As you increase the radius, you decrease the ionisation energy
(Ring)
S- Shielding - As you increase the shileding the outer electron is going to be less attracted to the nucleus, therefore the ionisation increases.
(Swearing)