BONDING: Electron Shells, Sub-Shells and Orbitals

Question 1

What model are electron shells arranged by?

Answer 1

The Bohr model

Question 2

How are shells defined by according to the principal quantum number?

Answer 2

With the symbol ‘n’

Question 3

What is the rule for n?

Answer 3

The higher the n the more energy it contains and the further it orbits from the nucleus

Question 4

What is the relationship between n and sub-shells?

Answer 4

A shell with a given n will have n sub-shells

Question 5

What is the maximum amount of electrons an orbital can hold?

Answer 5

Two electrons

Question 6

Different sub-shells have the same energy. True or false?

Answer 6

False

Question 7

What are the first three orbitals labelled as?

Answer 7

s, p and d

Question 8

How many orbitals is an s sub-shell made up of?

Answer 8

1

Question 9

How many orbitals is a p sub-shell made up of?

Answer 9

3

Question 10

How many orbitals is a d sub-shell made up of?

Answer 10

5

Question 11

Define the word ‘degenerate’

Answer 11

This is used to describe orbitals with exactly the same amount of energy