1.1 Atomic Structure (electronic structure)

Question 1

What are electron shells defined by?

Answer 1

The principal quantum number (n)

Question 2

What n number does the lowest energy shell have?

Answer 2

1n

Question 3

What is the rule with n numbers?

Answer 3

The higher the n the further from the nucleus

Question 4

What is the definition of a sub shell?

Answer 4

Smaller shells in electron shells with a lower difference in energy e.g. N3 had 3 subshells

Question 5

What are orbitals?

Answer 5

Compose subshells
Have the same energy as other orbitals in the same subshells

Question 6

How many electrons can each subshell hold?

Answer 6

2

Question 7

What are the first three subshells called?

Answer 7

S,P,D

Question 8

How many orbitals does each subshell have?

Answer 8

S = 1
P = 3
D = 5

Question 9

What order are obitals filled in (generally)?

Answer 9

From the lowest energy (s) to the highest (d)

Question 10

What is the exception to the filling order of electrons in order of energy?

Answer 10

4 s once full has more energy than 3d

Question 11

What is the Hunds rule?

Answer 11

Electrons occupy orbitals on theiir own and will only pair up when no empty orbitals are available