If the Density of a Certain Spherical Atomic Nucleus Is

question 28

Multiple Choice

If the density of a certain spherical atomic nucleus is 1.0 * 10¹⁴ g cm^-3 and its mass is 2.0 * 10^-23 g, what is its radius in cm?

• A) 3.6 * 10^-13 cm
• B) 2.0 *0 10^-37 cm
• C) 4.8 * 10^-38 cm
• D) 2.2 * 10^-19 cm
• E) None of these choices is correct.

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Definitions:

Immunoglobulin

A type of antibody produced by the immune system to fight infections and diseases.

Allergic Reaction

An immune response to a substance (allergen) that results in symptoms such as itching, swelling, and difficulty breathing.

IgE

Immunoglobulin E, a class of antibodies produced by the immune system in response to allergens.

Naturally Acquired Active

refers to immunity developed through exposure to the natural occurrence of a pathogen, leading to the formation of memory cells and antibodies without vaccination.