Unit One, Chapter Four - Ionisation Energy

Question 1

How are the periods divided into blocks?

Answer 1

By which orbital subshell has the highest-energy-level elections are found in

Question 2

Periodic table orbital blocks

Answer 2

s block (1,2), d block (transition metals), p block (3,4,5,6,7), f block (lanthanides, actinides)

Question 3

When is the d subshell most stable?

Answer 3

When it contains either 5 or 10 electrons

Question 4

When is the p subshell most stable?

Answer 4

When it contains either 3 or 6 electrons

Question 5

Possible reasons for small changes in ionisation energy across a period

Answer 5

New orbital subshells, stability of orbital subshells, and electron-electron repulsion

Question 6

Define ionisation energy

Answer 6

The energy involved in removing one mole of electrons from one mole of atoms in the gaseous state

Question 7

What is ionisation?

Answer 7

The process of removing electrons from atoms and ions

Question 8

The more stable electronic configuration…

Answer 8

… The higher the ionisation energy

Question 9

Ionisation energy is heavily associated with…

Answer 9

… Electronic configurations