What is the ground-state valence-shell electron configuration of the group of elements indicated by the shaded portion of the periodic table? 
Definitions:
Pie Chart
A circular statistic graphic, which is divided into slices to illustrate numerical proportion. Each slice represents a category's contribution to the total.
Line Graph
A type of chart used to display information as a series of data points connected by straight line segments, often to show trends over time.
Cumulative Frequency
The sum of a class and all classes below it in a frequency distribution.
Frequency Polygon
A graphical representation of the distribution of a dataset that shows the frequency of data points within certain intervals.
Q12: Which one of these spheres represents an
Q15: When 280.mL of 1.50 × 10<sup>-4 </sup>M
Q21: Which one of these spheres represents an
Q26: Which statement about elemental analysis by combustion
Q49: A process is carried out at constant
Q58: What reagent could not be used to
Q120: The product of the reaction of lithium
Q127: Based on the balanced chemical equation shown
Q158: When the equation MnO<sub>4</sub><sup>-</sup>(aq)+ C<sub>2</sub>O<sub>4</sub><sup>2-</sup>(aq)→ Mn<sup>2+</sup>(aq)+ CO<sub>2</sub>(g)is
Q227: Which molecular orbitals for homonuclear diatomic molecules