The Atomic Number of Nitrogen Is 7

question 14

Multiple Choice

The atomic number of nitrogen is 7. Nitrogen-15 is heavier than nitrogen-14 because the atomic nucleus of nitrogen-15 contains how many neutrons?

• A) 6
• B) 7
• C) 8
• D) 12
• E) 14

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Definitions:

Normally Distributed

Describes a dataset that forms a bell-shaped curve when graphed, with most values clustering around a central region and thin tails on either end.

Population Variances

A measure of the dispersion or spread of a set of data points within a population, indicating how much the numbers differ from the population mean.

Sample Mean Difference

Sample mean difference is the arithmetic difference between the means of two samples, used to compare their central tendencies.

Mean Playing Times

The average duration of play sessions across a defined set of games or activities, calculated by summing all individual playing times and dividing by the number of sessions.