3. What atom has five shells and seven valence electrons
4. The most active metal in period 2
5. Which atom of period 4 is the most active nonmetal
6. Element with lowest lonization energy (IE) in group IVA
7. What is the second largest atom in period 6
8. What is the more active nonmetal S or P
9. What is the more active nonmetal S or Se
10. What is the more active metal K or Ca
11. What is the more active metal Ca or Mg
12. Compare the elements Ar and Cl
a. Which has the greater force of attraction
b. Which has the greater ionization energy
c. Which is the better taker of electrons
d. Which is better at keeping it's electrons
e. Which is bigger
13. Compare the elements N and P
a. Which has the greater force of attraction
b. Which has the greater ionization energy
c. Which is the better taker of electrons
d. Which is better at keeping it's electrons
e. Which is bigger