Periodic table - Revision Quiz

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.
• The atoms have more protons.
• The atoms have more energy levels
• The atoms have more nuetrons

As you move across the periodic table atoms tend to get smaller because, ______________.

• the atoms have more mass.

• the atoms have less mass

• the atoms have a bigger effective nuclear charge

• the atoms have less electrons.

Which atom has the largest atomic radius?

• potassium

• rubidium

• francium

• cesium

The atom with the largest atomic radius in Group 18 is

• Ar

• He

• Kr

• Rn

Reorder the following with highest first ionisation energy first.

• Si - silicon

• Al - aluminium

• Li - Lithium

• Na - Sodium

• Mg - magnesium

What trend is evident in the group 1 elements in the graph above?

What trend is evident in the period 3 elements in the graph above? (disregard any inconsistencies)

Explain the inconsistency in the trend of first ionisation energies between magnesium and aluminium.

Explain the inconsistency in the trend of first ionisation energies between phosphorus and sulfur

Reorder the following elements largest atomic radius to smallest

• O (oxygen)

• Fr (Francium)

• Fe (iron)

• Cs (caesium)

• F (fluorine)