2-7 Relate electron configuration and properties of ions to the parent atoms' location in the periodic table

2-7-1. What is the electron configuration of naturally occurring aluminum ion?
A. [Ne] 3s² 3p¹
B. [Ne] 3s²
C. [Ne] 3s¹
D. [Ne]

2-7-2. All of the following have the same electron configuration except...?
A. Ne, B. Na⁺, C. O^-, D. O^2-

2-7-3. What is the electron configuration of Fe³⁺?
A. [Ar] 4s² 3d⁶
B. [Ar] 4s² 3d³
C. [Ar] 4s¹ 3d⁴
D. [Ar] 3d⁵

2-7-4. Which of the following has the largest size?
A. K, B. K⁺, C. Se, D. Li

2-7-5. Which of the following has the largest size?
A. Cl, B. Cl^-, C. F, D. F^-

2-7-6. Which of the following has the highest ionization energy?
A. Ne, B. Mg²⁺, C. Mg, D. F^-

2-7-ALD. What is the charge on the most stable ion of the element Sr?
A. +1, B. +2, C. 0, D. -6