A Sample of Matter That Contains Atoms That All Have

question 30

Multiple Choice

A sample of matter that contains atoms that all have the same number of protons is

• A) an element.
• B) a substance.
• C) a compound.
• D) a homogeneous mixture.

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Definitions:

Fluorescence

The emission of light by a substance that has absorbed light or other electromagnetic radiation, often used in scientific and medical applications.

Cholecystography

An X-ray exam that helps visualize the gallbladder to diagnose problems such as gallstones.

Cholecystogram

A cholecystogram is a diagnostic imaging test that uses X-rays to visualize the gallbladder, often to detect gallstones or other gallbladder disorders.

Cholecystectomy

A medical operation to excise the gallbladder.