Let Q Represent a Mass of Radioactive Radium (²²⁶Ra) (In

question 26

Multiple Choice

Let Q represent a mass of radioactive radium (²²⁶Ra) (in grams) , whose half-life is 1599 years.The quantity of radium present after t years is Determine the quantity present after 300 years.Round to the nearest hundredth of a gram.

• A)0 g
• B)0.47 g
• C)5.00 g
• D)4.39 g
• E)0.88 g

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Definitions:

Logical Function

In computing and mathematics, a function that evaluates a set of conditions and returns a true or false value.

IF

A conditional statement used in programming that executes a specific segment of code if a given condition is true.

VLOOKUP

A function in Excel and other spreadsheet software that searches for a value in the first column of a range and returns a value in the same row from a specified column.

COUNTIF

A function in spreadsheet software that counts the number of cells within a range that meet a single criterion.