What Happens to the Mass Number of an Element When

question 104

Multiple Choice

What happens to the mass number of an element when an α particle is emitted from its nucleus?

• A) The mass number increases.
• B) The mass number decreases.
• C) The mass number does not change.

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Definitions:

Sample Mean

The arithmetic average of a set of sample observations, used as an estimate of the population mean.

Sampling Distribution

The framework of chances for a specific statistic, selected randomly.

Normally Distributed

A type of continuous probability distribution for a real-valued random variable, where the data tends to cluster around a central mean value, forming a bell curve.

Sampling Distribution

A distribution showing the probability of various outcomes for a specific statistic, coming from a random sample, and used for inferential purposes about the population.