Which of the following elements has the largest atomic radius: ?

Which of these atoms is the smallest?

The set of elements with the highest first ionization energies are known as which of the following?

Rank the following in order of increasing metallic character:

Which of the following atoms in the largest?

Which atom is the most electronegative?

Which element is the least electronegative?

Which of the following elements has the most metallic character: ?