Which of the Following Elements Is a Gas at Room

question 86

Multiple Choice

Which of the following elements is a gas at room temperature?

• A)argon (Ar)
• B)lead (Pb)
• C)cesium (Cs)
• D)indium (In)
• E)lithium (Li)

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Definitions:

Ordered Array

An arrangement of elements in a sequence where they are sorted in ascending or descending order.

Quartiles

Divisions of a data set into four equal parts, representing the distribution of values within the data set.

Sample Z-score

A measure indicating the number of standard deviations a data point is from the mean of its sample.

Standard Deviation

A gauge for assessing the extent of scatter among numbers in a group.