A Radioactive Nucleus with Z = 92 and a =

question 60

Multiple Choice

A radioactive nucleus with Z = 92 and A = 235 decays through a series of alpha,beta,and gamma emissions to a stable nucleus with Z = 82 and A = 207.The number of alpha particles and the number of beta particles emitted during the entire process are

• A)8 alpha particles and 6 beta particles.
• B)7 alpha particles and 4 beta particles.
• C)7 alpha particles and 10 beta particles.
• D)14 alpha particles and 7 beta particles.
• E)None of these is correct.

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Goods or services brought into a country from abroad for sale, often subject to tariffs or trade agreements.

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The exchange of goods or services for money, considering the total number of transactions completed.

Percent

Percent is a term used to describe a number or ratio expressed as a fraction of 100, often used to indicate proportions, ratios, and shares in everything from statistics to financial rates.