A. Ne
B. Na
C. Br
D. Mn
2-6-2. Which of the following has the highest ionization energy?
A. Na, B. Rb, C. N
2-6-3. The ionization energy of bromine atoms is the energy associated with which of the following?
A. Br(g) → Br+(g) + e-
B. Br2(l) → 2 Br+(g) + 2e-
C. Br(g) + e- → Br-(g)
D. Br2(l) + 2e- → 2 Br-(aq)
2-6-4. Which of the following has the smallest atomic radius?
A. O
B. S
C. Li
2-6-5. The increasing trend in ionization energy across a period, from left to right, is due to...
A. Increasing repulsions among electrons in the valence shell
B. Increasing effective nuclear charge
C. Increasing number of core electrons
D. Increasing size of the valence shell
2-6-6. The decreasing trend in ionization energy going down a group is, is due to...
A. Increasing repulsions among electrons in the valence shell
B. Increasing effective nuclear charge
C. Decreasing number of core electrons
D. Increasing size of valence shell
2-6-7. Which atom's first five ionization energies best resembles the pattern shown in the graph?
A. Na
B. Mg
C. Al
D. K
2-6-ALD. Rank the following three elements in order of increasing atomic radius: Cs, At, N
A. Cs, At, N
B. N, At, Cs
C. At, Cs, N
D. Cs, N, At
2-6-JJW. Which of the following species has the largest radius?
A. Na
B. K
C. Kr
