An Isotope of the Element Manganese (Mn) Has an Atomic

question 102

Multiple Choice

An isotope of the element Manganese (Mn) has an atomic number of 25 and a mass number of 55. Assuming the atom is neutral, this means it has

• A) 55 protons, 55 electrons, and 25 neutrons
• B) 25 protons, 25 electrons, and 30 neutrons
• C) 25 protons, 30 electrons, and 25 neutrons
• D) 25 protons, 25 electrons, and 55 neutrons

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Definitions:

Sampling Distributions

The probability distribution of a statistic obtained from a large number of samples drawn from a specific population.

Statistical Significance

A measure of how likely it is that obtained results are not due to chance, often determined by a p-value.

Systematic Variance

The portion of total variance in a set of data that is attributable to identifiable factors or variables, as opposed to random variance.

Group Means

The average values obtained from different samples or sets of data, representing the central tendency of each group.