1. Which electrons experience the greatest effective nuclear charge?
(a) the valence electrons in Mg
(b) the valence electrons in Al
(c) the valence electrons in S
2. On the basis of atomic size, choose the larger atom in each pair (if possible). Explain
your choices.
(a) C or F
(b) C or Ge
(c) N or Al
(d) Al or Ge
3. Write the electron configuration and orbital diagram for each ion and determine whether
each is diamagnetic or paramagnetic.
(a) Al3+ (b) S2- (c) Fe3+
4.
5. Based on Ion size choose the larger atom or ion from each pair.
(a) S or S2 - (b) Ca or Ca2 +
5. On the basis of periodic trends, determine which element in each pair has the higher
first ionization energy (if possible).
(a) Al or S (b) As or Sb (c) N or Si (d) O or Cl