8. Which has higher second ionization energy, Magnesium or Sodium? Explain your
answer
9. Of Sodium and Chlorine, which will have a larger ion? Why?
10. Try to describe electronegativity in your own words. Which elements are more
electronegative?
11. You have an element in group 5, period 2. Which element is this? Is it more or less
electronegative than sodium?
