Which of the Following Atomic Numbers (Which Are the Same

question 15

Multiple Choice

Which of the following atomic numbers (which are the same as the number of electrons in a neutral atom) correspond to a Group 2 metal,i.e.their ground-state electronic configuration ends in "..s^2"?

• A)4,14,20
• B)4,22,40
• C)6,12,22
• D)4,12,38
• E)4,14,38

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Definitions:

Third Quartile

The value below which 75% of the data in a data set lie, representing the upper quartile of a distribution.

Mean

The average of a set of numbers, calculated by adding them up and dividing by the count of numbers.

Mean Household Income

The average amount of money earned by households in a particular demographic or area.

Households in Michigan

The units of living quarters where the occupants live together, located within the geographical limits of Michigan.