Question Detail

CHM 102 Radioactivity Objective Question

Question

Is the value of half-life dependent on the amount of isotope present?
Options
A Yes, a larger amount of isotope will have a longer half-life.
B Yes, a smaller amount of isotope will have a longer half-life.
C No, the value of half-life is independent of the amount of isotope.
Correct Answer
D Only for certain types of isotopes.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 9 explicitly states: 'The value of half-life is independent of the amount of isotope (i.e. regardless of if we have 1 g or 1000 g of 24Na the half-life is still 15 hrs)'.

Hint

Look at the last bullet point on page 9 regarding the independence of half-life.

Question Info