When $\begin{array} { c } 226 \\88\end{array}$ Ra Decays by Emitting an Alpha Particle,what Is the Atomic

question 56

Multiple Choice

When $\begin{array} { c } 226 \\88\end{array}$ Ra decays by emitting an alpha particle,what is the atomic number of the resulting nucleus? What is the resulting atomic mass?

• A)atomic number = 86; atomic mass = 222
• B)atomic number = 87; atomic mass = 226
• C)atomic number = 86; atomic mass = 224
• D)atomic number = 87; atomic mass = 224

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