A Nail Is Coated with a 0

question 13

Multiple Choice

A nail is coated with a 0.053 cm thick layer of zinc.The surface area of the nail is 8.59 cm².The density of zinc is 7.13 g/cm³.How many zinc atoms are used in the coating?

• A) 5.9 × 10²⁰ atoms
• B) 3.0 × 10²² atoms
• C) 3.8 × 10²² atoms
• D) 2.0 × 10²⁴ atoms
• E) 1.3 × 10²⁶ atoms

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Definitions:

Dosimeter

A device that measures exposure to ionizing radiation, such as X-rays, alpha rays, beta rays, and gamma rays.

Radiation Exposure

The condition of being subjected to ionizing or non-ionizing radiation such as from sunlight, x-rays, or nuclear reactions.

Roentgen Rays

Another term for X-rays, which are electromagnetic radiation used in medical imaging to view inside the body.

X-Ray Tube

A device used in X-ray machines to produce X-rays by directing high voltage electrons at a target material.