Carbon-11 Decays by Positron Emission: C → B

question 95

Multiple Choice

Carbon-11 decays by positron emission: C → B + e The decay occurs with a release of 2.87 × 10¹¹ J per mole of carbon-11. When 4.00 g of carbon-11 undergoes this radioactive decay, __________ g of mass is converted to energy.

• A)1.16 × 10^-3
• B)3.48 × 10⁵
• C)1.16 × 10^-6
• D)8.62 × 10²
• E)1.28 × 10^-2

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Definitions:

Allergies

Immune system reactions to a foreign substance that most people tolerate, manifesting symptoms like itching, sneezing, or hives.

Immunoglobulin

A group of large Y-shaped proteins, also known as antibodies, that are used by the immune system to identify and neutralize foreign objects like bacteria and viruses.

Recognizes

The act of identifying someone or something as having been previously seen, known, or understood.

Bacteria

Microscopic, single-celled organisms found in diverse environments, some of which can cause disease, while others are beneficial.