Elements X, Y and Z have atomic numbers 19, 37 and 55 respectively. Which of the following statements is true about them?

Elements X, Y and Z have atomic numbers 19, 37 and 55 respectively. Wh

1.	Elements X, Y and Z have atomic numbers 19, 37 and 55 respectively. Which of the following statements is true about them?
Answer» Their IONIZATION POTENTIAL would increase with increasing atomic number Y' would have an ionization potentialbetween those of X and Z Z would have the highest ionization potential Y would have the highest ionization potential Answer :B