Multiple Choice
If a tree dies and the trunk remains undisturbed for 13,261 years,what percentage of original 
is still present? (half-life of 
= 5730 years)
A) 79.9%
B) 20.1%
C) 40.2%
D) 30.2%
E) 2.31%
Correct Answer:
Verified
Correct Answer:
Verified
Q73: The I-131 nuclide has a half-life of
Q74: Electron capture transforms <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6423/.jpg" alt="Electron capture
Q75: The lead-208 nucleus has a mass
Q76: A certain radioactive sample contains 2.4
Q77: The most likely decay mode (or
Q78: Calculate the change in energy in
Q79: Use the following data to determine the
Q80: The number of a certain radioactive nuclide
Q81: The nuclide <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6423/.jpg" alt=" The
Q82: Calculate <span class="ql-formula" data-value="\Delta"><span class="katex"><span