Isotopes of the Same Element Differ by Having Different Numbers

question 42

Multiple Choice

Isotopes of the same element differ by having different numbers of

• A) protons.
• B) neutrons.
• C) electrons.
• D) carbon atoms.
• E) double bonds.

---

Definitions:

Esophagus

The muscular tube that conveys food and liquids from the mouth to the stomach.

Anaphylactic Shock

A severe, often fatal form of shock characterized by smooth muscle contraction and capillary dilation initiated by cytotropic (IgE class) antibodies.

Epinephrine

A hormone and medication, also known as adrenaline, that increases heart rate, contracts blood vessels, dilates air passages, and participates in the fight-or-flight response.

Allergist

A specialist who diagnoses and treats physical reactions to substances including mold, dust, fur, pollen, foods, drugs, and chemicals.