The Symbol for a Certain Isotope of Polonium Is $^{214}_{84}$ Po How Many Neutrons Are There in the Nucleus of Po

question 114

Multiple Choice

The symbol for a certain isotope of polonium is $^{214}_{84}$ 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:

Contribution Margin

The difference between sales revenue and variable costs, indicating how much revenue contributes to covering fixed costs and generating profit.