About What Fraction of the Initial Activity of a Radioactive

question 79

Multiple Choice

About what fraction of the initial activity of a radioactive source remains after 10 half-lives?

• A)1.0 × 10^-10
• B)9.8 × 10^-4
• C)5.0 × 10^-2
• D)3.9 × 10^-3

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Definitions:

Chromosome 21

One of the 23 pairs of chromosomes in humans, with Down syndrome resulting from an extra copy of this chromosome.

Monosomy

Chromosome condition in which a diploid cell has one less chromosome than normal; designated as 2n − 1.

Complete Chromosome

A fully intact and functional chromosome that contains all its genetic information and structures needed for normal cellular activities and division.

Loss

The act or an instance of losing, referring to the fact or process of losing something or someone, typically in a financial, emotional, or physical context.