A Sample of a Radioactive Isotope Is Found to Have

question 72

Multiple Choice

A sample of a radioactive isotope is found to have lost 26.6% of its original activity after 3.21 days.What is the rate constant for decay of this isotope?

• A) 0.096 d−1
• B) 0.413 d−1
• C) 0.993 d−1
• D) 0.0735 d−1
• E) 1.34 d−1

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Definitions:

Extends Keyword

In programming languages like Java, it specifies that a class is deriving from a base class.

Inheritance

A mechanism in object-oriented programming that allows a class to inherit properties and behavior (methods) from another class.

Derived Class

A class that inherits properties and methods from another class, also known as a child or subclass.

Base Class

A class from which other classes are derived or inherit properties and methods in object-oriented programming.