Use of the Data Booklet is relevant to this question.
From which particle is the removal of an electron the most difficult?

The graph shows the first thirteen ionisation energies for element X.

What can be deduced about element X from the graph?

Use of the Data Booklet is relevant to this question.
In forming ionic compounds, elements generally form an ion with the electronic structure of a
noble gas.
Which ion does not have a noble gas electronic structure?

Three successive elements in the Periodic Table have first ionisation energies which have the pattern shown in the diagram.

What could be the first element of this sequence?

What is the electronic configuration of an element with a second ionisation energy higher than that of each of its neighbours in the Periodic Table?

Use of the Data Booklet is relevant to this question.
The elements radon (Rn), francium (Fr) and radium (Ra) have consecutive proton numbers
in the Periodic Table.
What is the order of their first ionisation energies?

Use of the Data Booklet is relevant to this question.
What could be the proton number of an element that has three unpaired electrons in each of
its atoms?

Use of the Data Booklet is relevant to this question.
Which graph represents the number of unpaired p orbital electrons for atoms with proton
numbers 13 to 18?

The first seven ionisation energies of an element between lithium and neon in the Periodic Table are as follows:

What is the outer electronic configuration of the element?

The first six ionisation energies of four elements, A to D, are given.
Which element is most likely to be in Group IV of the Periodic Table?