Select the Correct Statement About Isotopes

question 85

Multiple Choice

Select the correct statement about isotopes.

• A) Isotopes occur only in the heavier elements.
• B) All the isotopes of an element are radioactive.
• C) Isotopes of the same element have the same atomic number but differ in their atomic masses.
• D) All the isotopes of an element have the same number of neutrons but differing numbers of electrons.

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Definitions:

Confidence Interval

An interval of values, pulled from a sample's statistics, with a good chance of containing the elusive value of a population parameter.

Level of Significance

The probability of rejecting the null hypothesis in a statistical test when it is actually true, typically denoted by alpha (\(\alpha\)).

Test Statistic

A value calculated from sample data during a hypothesis test that is used to make a decision about the validity of a hypothesis.

Type I Error

The mistake of rejecting a true null hypothesis, also known as a false positive.