What Mass of ¹⁴C, with a Half-Life of 5730 Y $280.0 \mathrm {~Bq} ?$

question 7

Multiple Choice

What mass of ¹⁴C, with a half-life of 5730 y, do you need to provide a decay rate of $280.0 \mathrm {~Bq} ?$ The mass of ¹⁴C is 14.00 u, and 1 u = 1.6605 × 10^-27 kg.

• A)1.70 × 10^-12 kg
• B)5.38 × 10^-19 kg
• C)3.84 × 10^-20 kg
• D)8.68 × 10^-13 kg

Identify effective treatments and preventive measures for skin conditions.

Understand the relationship between skin health and aging.

Comprehend the significance of vitamin absorption through the skin.

Distinguish between different layers of the skin and their functions.