Barium-122 Has a Half-Life of 2 Minutes

question 91

Multiple Choice

Barium-122 has a half-life of 2 minutes. If 10.0 g of Ba-122 are produced in a nuclear reactor how much Ba-122 will remain 10 minutes after production ceases?

• A) 2.50 g
• B) 1.25 g
• C) 0.625 g
• D) 0.313 g

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Definitions:

Overgrazing

The depletion of vegetation due to continuous feeding by an excessive number of grazing animals, leading to land degradation.

Water Scarcity

A situation in which the available water resources are insufficient to meet the demands of a region.

Precipitation

Any form of water - liquid or solid - falling from the atmosphere to the Earth's surface, including rain, snow, sleet, and hail.

Evaporation

The process by which water transforms from a liquid to a gas or vapor state, often driven by heat from the sun, playing a critical role in the water cycle.