The Half-Life of Radon-222 Is $3.83 \mathrm {~d}$ If a Sample of Radon Initially Contains

question 96

Multiple Choice

The half-life of radon-222 is $3.83 \mathrm {~d}$ . If a sample of radon initially contains $6.00 \times 10 ^ { 8 }$ radon atoms, how many of them are left after $10.0 \mathrm {~d}$ ?

• A) \(7.29 \times 10 ^ { 8 }\)
• B) \(9.82 \times 10 ^ { 7 }\)
• C) \(7.67 \times 10 ^ { 7 }\)
• D) \(8.34 \times 10 ^ { 8 }\)
• E) \(8.56 \times 10 ^ { 8 }\)

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Definitions:

Revenue

The total income generated by a company from its business activities, such as sales of goods and services, before any expenses are deducted.

Cash Coverage Ratio

A measure of a company's ability to pay its debt obligations using its operating cash flow.

Quick Ratio

The Quick Ratio, also known as the acid-test ratio, measures a company's ability to meet its short-term obligations with its most liquid assets, excluding inventory.