Answer to Question #92138 in Inorganic Chemistry for Ummulkhairi

Question

Arrange the following elements in order of increasing first ionization energies: Be,K,Ca,Ra and Na

Answer 1

Potassium has the lowest ionization energy of the first electron, Beryllium has the highest. In general, the trend of ionization energy changes is as follows: the smaller the radius, the greater the ionization energy.

Answer:

$$K < Na < Ra < Ca < Be$$