The Isotope Has a Half-Life of 7

question 55

Multiple Choice

The isotope has a half-life of 7.5 seconds. If a sample contains 144 atoms of approximately how many such atoms were there present 30 seconds earlier?

• A)576
• B)1152
• C)2304
• D)4320
• E)4.30 × 10 ⁸

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Definitions:

Active Listening

A communication technique that involves fully concentrating, understanding, responding to, and remembering what is being said.

Information Triage

The process of prioritizing and organizing information according to its urgency, relevance, and importance, often used in contexts where large volumes of information must be managed efficiently.

Offer Sympathy

The act of expressing understanding, compassion, or sorrow for another's situation or feelings, aiming to provide comfort.

Listening Styles

The preferred ways individuals pay attention to and process spoken information and communication.