Which of the following elements has the largest atomic radius?

Which has the lowest ionization energy?

Metallic property is the tendency of an atom to lose electrons. Which of the following is a metal?

Which group has the lowest ionization energy on the periodic table?

Which has the highest electronegativity?

It is the energy needed to remove the valence electrons from a neutral atom.

It is the amount of energy released when an electron is attached to a neutral atom or molecule in the gaseous state to form a negative ion.