How Many Electrons Are in the Ion,Cu²⁺

question 27

Multiple Choice

How many electrons are in the ion,Cu²⁺?

• A)27
• B)29
• C)31
• D)64

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Definitions:

Mean

The mean is the average of a set of numbers, calculated by adding them all together and then dividing by the count of those numbers.

Z-statistic

A statistical metric that measures the number of standard deviations a data point is from the mean, used in hypothesis testing.

Z-test

A statistical assessment employed to ascertain if there's a difference between the means of two populations when variances are recognized and the sample size is substantial.

µ = 145

A statement indicating that the mean (average) of a particular set of data or population is equal to 145.