Concept #1: Understanding Ionization Energy
Ionization energy is the energy required to remove an electron from a gaseous element.
Concept #2: Exceptions to Ionization Energy in Groups 5A & 6A
Concept #3: Exceptions to Ionization Energy in Groups 2A & 3A
Example #1: Of the following atoms, which has the smallest second ionization energy?
Al Li Rb Mg Be
Practice: Of the following atoms, which has the smallest third ionization energy?
Practice: Which of the following statements is/are true?
a. Sulfur has a larger IE1 than Phosphorus
b. Boron has a lower IE1 than Magnesium
c. Magnesium has a higher IE1 than Aluminum
Practice: Shown below are the numerical values for ionization energies (IE's). Match the numerical values with each of the following elements provided in the boxes.