If We Start with 1

question 25

Multiple Choice

If we start with 1.000 g of cobalt- 60, 0.675 g will remain after 3.00 yr. This means that the half- life of cobalt- 60 is _ _ yr.

• A) 3.08
• B) 7.65
• C) 2.03
• D) 5.30
• E) 4.44

---

Definitions:

Jargon

Specialized or technical language used by a specific group, often difficult for outsiders to understand.

Perspective

A particular attitude or way of considering a matter, influenced by one's background, beliefs, or experiences.

Digital Communication

The sharing or exchange of information and messages through electronic systems and devices, such as computers and smartphones, over digital platforms or networks.

Conversational Tone

A writing or speaking style that is informal, friendly, and akin to natural spoken communication.