What Percent of a Present Amount of Radioactive Radium $\left( { } ^ { 226 } R a \right)$

question 21

Multiple Choice

What percent of a present amount of radioactive radium $\left( { } ^ { 226 } R a \right)$ will remain after 900 years?

• A)45%
• B)25%
• C)65%
• D)68%.

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Definitions:

Expected Product

The outcome that is predicted to result from a chemical reaction under specified conditions, based on the reactants and the reaction mechanism.

Solvolysis

A chemical process where the solvent plays a crucial role in the breaking of bonds in substrates, leading to the formation of products.

Chiral

Describes a molecule that cannot be superimposed on its mirror image, essentially having a non-symmetrical arrangement of atoms.

Alkyl Halide

An organic compound containing a halogen atom (chlorine, bromine, fluorine, or iodine) bonded to an alkyl group.