Arrange each of the following lists of elements in order ofdecreasing electron affinity:a. Na, Li, K b. Sr, Sn, Te

Two elements 1 and 2 are in the same row of the periodic table but not next to each other. Element 1 has a larger atomic radius than element 2, which of the following are most likely to be true about their relative ionization energies and why? O e a. I and IV b. II and IV c. III and VI d. I and V e. Il and V O b Od O a I. Element 1 has a larger ionization energy II. Element 2 has a larger ionization energy III. They both have the same ionization energy Because O c IV. electrons in element 1 are more strongly attracted to the nucleus V. electrons in element 2 are more strongly attracted to the nucleus VI. electrons are being removed from the same quantum shell

8 Answer the following to the best of your ability: Why does nitrogen have a smaller radium than beryllium? Why is the radium of rubidium bigger than the radius of sodium? Why is the first ionization energy of strontium smaller than magnesium? a. b. c. 278

Arrange these atoms and ions in order of increasing radius: S, cr, Ar. O A. s2- < Cr