If Originally There Were X Atoms of Radioactive Isotope Present

question 104

Multiple Choice

If originally there were X atoms of radioactive isotope present and now there are only X/8 atoms, how many half-lives have elapsed?

• A) 3
• B) 1
• C) 4
• D) 2

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Definitions:

Machine Hours

A measure of the total time that machinery is operated during a given period for manufacturing or producing something.

Bar Code Scanners

Electronic devices used to read and output printed barcodes to a computer, facilitating inventory management and sales operations.

Receiving Report

A document that records the details of goods received by a company, often used to verify shipments with purchase orders.

Materials Ledger

A detailed record keeping system that tracks the quantity and cost of materials on hand, received, and issued for production.