Two Radioactive Isotopes, X and Y, Both Decay to Stable

question 62

Multiple Choice

Two radioactive isotopes, X and Y, both decay to stable products. The half-life of X is about a day, while that of Y is about a week. Suppose a radioactive sample consists of a mixture of these two
Nuclides. If the mixture is such that the activities arising from X and Y are initially equal, then a few
Days later the activity of the sample will be due

• A) predominantly to Y.
• B) predominantly to X.
• C) to X and Y equally.
• D) entirely to Y.

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Definitions:

HR Forecasting

A method used in human resources to estimate future workforce needs to achieve the organization's objectives.

Organizational Goals

Objectives that an organization seeks to achieve, defining its purpose and, in essence, setting the direction for its activities and efforts.

Demand Requirements

The specific needs or quantities of products or services required by the market or a particular customer.

Qualitative Forecasting

The method of prediction based on non-quantifiable information such as expert opinions, industry trends, and qualitative comparisons.