How Is the Half-Life of a Radioactive Parent Isotope Defined

question 24

Multiple Choice

How is the half-life of a radioactive parent isotope defined?

• A) the time it takes for half of the parent isotope to decay
• B) half the time it takes for the parent isotope to completely decay
• C) the time it takes the parent isotope to go through half the decay steps necessary to produce a stable daughter isotope
• D) half of the average rate of decay of the parent isotope

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Definitions:

Tip-Of-The-Tongue

A cognitive phenomenon where a person cannot fully retrieve a word but has a partial recall or feels that retrieval is imminent.

Memory Aids

Tools or techniques used to enhance or improve the ability to remember information.

Recall

The ability to retrieve and access information from one's memory that has been previously learned or experienced.

Spelling

The process or activity of writing or naming the letters of a word in the correct order.