The Number of Radioactive Nuclei in a Particular Sample Decreases

question 61

Multiple Choice

The number of radioactive nuclei in a particular sample decreases to one-eighth of its original number in 9 days.What is the half-life of these nuclei?

• A)9/8 days
• B)2 days
• C)3 days
• D)8 days
• E)10 days

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Definitions:

Sulfhydryl

A functional group in organic chemistry consisting of a sulfur atom covalently bonded to a hydrogen atom, commonly found in proteins.

Proteins

Large biomolecules consisting of one or more long chains of amino acid residues, essential for the structure, function, and regulation of the body's tissues and organs.

Amino Acids

Organic compounds that combine to form proteins and are known as the building blocks of life, essential for various bodily functions.

Double Covalent

A type of chemical bond where two pairs of electrons are shared between two atoms for a stronger bond.