Which of the following elements has the smallest first ionization energy? 1. F
2. I
3. Mg
4. As
5. Rb

David is standing on the sixth rung of a ladder while painting his house. which expressions represent a change in david’s position of 2 rungs on the ladder? choose exactly two answers that are correct. a. 6+2 b. 6-2 c. 2x6 d. 6/2