Arrange the following elements based on their increasing atomic size.1 pointAl<Ca<K<Rb<CsCs<Rb<K<Ca<AlCs<Rb<Ca<K<AlAl<K<Ca<Rb<Cs

The atomic size of elements increases as you move down a group (column) in the periodic table. This is because each row adds a new electron shell. Here is the correct order from smallest to largest atomic size:

Al < Ca < K < Rb < Cs

Explanation:

• Al (Aluminum) is in the third period of the periodic table.
• Ca (Calcium) is in the fourth period of the periodic table.
• K (Potassium) is also in the fourth period, but it is to the left of Calcium, so it has a slightly larger atomic size.
• Rb (Rubidium) is in the fifth period of the periodic table.
• Cs (Cesium) is in the sixth period of the periodic table.

So, the atomic size increases in the order: Al < Ca < K < Rb < Cs.