1. Periodic Properties of the Elements
Chemistry: A Molecular Approach, 1st Edition
Nivaldo J. Tro
Chapter 8
Periodic Properties of the Elements

2. What is the ground state electron configuration for Mo?
Mo: [Kr]5s24d4
Mo: [Kr]5s04d6
Mo: [Ar]4s23d4
Mo: [Ar]4s13d5
Mo: [Kr]5s14d5
Tro Chemistry: A Molecular Approach

3. What is the ground state electron configuration for Mo?
Mo: [Kr]5s24d4
Mo: [Kr]5s04d6
Mo: [Ar]4s23d4
Mo: [Ar]4s13d5
Mo: [Kr]5s14d5
Tro Chemistry: A Molecular Approach

4. Tro Chemistry: A Molecular Approach
Which of the following correctly illustrates the valence electron configuration of sulfur? a) b) c) d)
Tro Chemistry: A Molecular Approach

5. Tro Chemistry: A Molecular Approach
Which of the following correctly illustrates the valence electron configuration of sulfur? a) b) c) d)
Tro Chemistry: A Molecular Approach

6. a) Ge b) Te c) Sn d) Se e) Sb
Which element’s 4+ ion would have the following electron configuration?
[Kr]4d10
a) Ge b) Te c) Sn d) Se e) Sb
Tro Chemistry: A Molecular Approach

7. a) Ge b) Te c) Sn d) Se e) Sb
Which element’s 4+ ion would have the following electron configuration?
[Kr]4d10
a) Ge b) Te c) Sn d) Se e) Sb
Tro Chemistry: A Molecular Approach

8. Tro Chemistry: A Molecular Approach
Consider the following isoelectronic series:
Cl– Ar K+ Ca2+
Which particle is the largest?
Cl– Ar K+
Ca2+
All particles are the same size.
Tro Chemistry: A Molecular Approach

9. Tro Chemistry: A Molecular Approach
Consider the following isoelectronic series:
Cl– Ar K+ Ca2+
Which particle is the largest?
Cl– Ar K+
Ca2+
All particles are the same size.
Tro Chemistry: A Molecular Approach

10. Consider the following successive ionization energies (kJ/mol):
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, ,345
Which element in period three would most likely show this trend in ionization energies? Mg Al Si P S
Tro Chemistry: A Molecular Approach

11. Consider the following successive ionization energies (kJ/mol):
IE IE IE IE IE IE IE7
, ,345
Which element in period three would most likely show this trend in ionization energies? Mg Al Si P S
Tro Chemistry: A Molecular Approach