The Symbol for a Certain Isotope of Polonium Is $\begin{array} { c } 214 \\84\end{array}$

question 3

Multiple Choice

The symbol for a certain isotope of polonium is $\begin{array} { c } 214 \\84\end{array}$ Po. How many neutrons are there in the nucleus of this isotope?

• A)84
• B)130
• C)214
• D)298
• E)314

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Definitions:

Need for Cognition

A personal trait that describes an individual's enjoyment and engagement in thinking processes and intellectual activities.

Situations Require Thinking

Circumstances that necessitate careful consideration and mental effort to resolve or understand.

Puzzles to Solve

Puzzles to solve are problems or challenges that require critical thinking and problem-solving skills to find a solution.

Cognitive Miser

A theory suggesting that humans, to save mental energy, prefer to solve problems in the simplest way possible rather than in a more sophisticated but effort-intensive way.