Arrange the following elements from highest to lowest ionization energy:

Question

a) Be, Mg, Ca, Rb, Y
b) Be, Mg, Ca, Rb, Sr
c) Rb, Sr, Ca, Be, Mg
d) Rb, Sr, Ca, Mg, Be
e) Be, Mg, Ca, Sr, Rb

Answer 1

The order of elements from highest to lowest ionization energy is as follows:

a) Be, Mg, Ca, Rb, Y
b) Be, Mg, Ca, Rb, Sr
c) Rb, Sr, Ca, Be, Mg
d) Rb, Sr, Ca, Mg, Be
e) Be, Mg, Ca, Sr, Rb