1.5 Electron Arrangements

Question 1

What are the shell called that are labelled 1,2,3 ?

Answer 1

Main energy level

Question 2

What is the maximum number of electrons formula?

Answer 2

2n^2 where n is the main level.

Question 3

What are the main energy levels divided into?
Called..? s..

Answer 3

Sub-levels with slightly different energy levels.
called: s,p,d and f

Question 4

What is the shape of the s orbital?

Answer 4

Spherical shape

Question 5

What is the shape of a p orbital?
And what do they lie on?

Answer 5

Hourglass shape.
And lies across the x,y, or z axis

Question 6

Define orbital.

Answer 6

A volume of space that can hold up to 2 electrons maximum with opposite spin.

Question 7

How much a s orbitals are in each main level?
How much electrons?

Answer 7

1
2

Question 8

How much a p orbitals are in each main level?
How much electrons?

Answer 8

3
6

Question 9

How much a d orbitals are in each main level?
How much electrons?

Answer 9

5
10

Question 10

How much a f orbitals are in each main level?
How much electrons?

Answer 10

7
14

Question 11

What is the order of the orbitals?

Answer 11

1s,
2s, 2p
3s, 3p , 4s, 3d..

Question 12

What is spin?

Answer 12

Two electrons in the same orbital have opposite spin.

Question 13

Define ionisation energy

Answer 13

Energy required to remove an electron from an isolated atom in its gaseous state.

Question 14

Define first ionisation energy?

Answer 14

How easily an atom loses an electron

Question 15

First ionisation step for Cl?

Answer 15

Cl(g)—> Cl+1(g) + e-

Question 16

Sixth ionisation step for Cl?

Answer 16

Cl+5(g)—> Cl+6(g) +e-

Question 17

(factors affecting IE)
What happens when the radius increases?

Answer 17

The attraction between the nucleus and other shell decreases.

Question 18

(factors affecting IE)
What happens when there are more protons? (nuclear charge)

Answer 18

More attraction between nucleus and outer shell.

Question 19

(factors affecting IE)
What happens when there is lots of shells?

Answer 19

Increase of electrons therefore a lot more repulsion which reduces the attraction