Question

In a group, a particular element has the lowest ionization potential, does it ionize most easily or least easily? Explain with example.

Answer 1

A particular element with lowest ionisation potential in a group will ionise most easily because lowest ionisation potential means that it requires less energy to remove the electron from its valence shell to form cation. For example, in group 1, ionisation potential decreases down the group. So, cesium atom has the least ionisation potential and can form cation easily than any other group 1 element.