What Is True of an Element of Atomic Number 15

question 139

Multiple Choice

What is true of an element of atomic number 15 that has an isotope of mass number 32? (There could be more than one correct choice.)

• A) the number of protons in the nucleus is 15.
• B) the number of neutrons in the nucleus is 15.
• C) the number of protons in the nucleus is 32.
• D) the number of nucleons in the nucleus is 47.
• E) the number of neutrons in the nucleus is 17.

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, indicating how much individual data points deviate from the mean.

Mean

The average of a set of numbers calculated by adding them together and dividing by the count of numbers.

Raw Score

The original, unadjusted score obtained in an assessment or measure before any transformations or standardizations are applied.

Standard Deviation

An index quantifying how much data points deviate or scatter from their average.