Which of the Following Statements Is True

question 38

Multiple Choice

Which of the following statements is true?

• A)Given the atomic number of an element, the atomic mass of the element can be calculated
• B)An isotope is identified by its mass number
• C)The number of neutrons in an atom determines the chemical reactivity of that isotope
• D)The total contribution to the mass of an atom from protons and electrons varies among the atoms of an element
• E)Mass differences among atoms of an element cannot be accounted for with our current understanding of the atom

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Definitions:

Apical Heart Rate

The number of heartbeats per minute as heard at the apex of the heart on the left side of the chest, an indicator of cardiac function.

Adverse Effect

An unintended, harmful reaction to a drug or therapy that occurs at a normal or recommended dosage.

Eye Ointment

A medication in an ointment form, applied directly to the eye to treat or prevent eye infections and diseases.

Discarding Medication

The process of safely and properly disposing of unused, expired, or unwanted medicines to prevent harm and environmental pollution.