A New Element Is Prepared That Has Two Isotopes

question 88

Multiple Choice

A new element is prepared that has two isotopes. One isotope is 32.00% abundant and has a mass of 103.2 u. The other has a mass of 105.2 u. What is the atomic mass of this element?

• A) 103.8
• B) 104.6
• C) 104.2
• D) 104.9
• E) none of these

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Definitions:

Interest Rate

The percentage at which interest is charged or paid for the use of money, often expressed annually.

Investment Options

Various financial assets or vehicles in which individuals or entities can invest money with the expectation of achieving a return.

Rule Of 70

A rule estimating the number of years required to double an investment or population at a particular annual growth rate, calculated by dividing 70 by that growth rate.

Interest Rate

The financial charge for borrowing resources, represented as a percentage of the initial loan amount.