Author: [Your Name]
Affiliation: [Your Institution]
Date: [Current Date]

If you answer yes to all of the above, you can safely keep the PDF for personal study.

  • Library access:
  • Open educational resources:
  • Course pages and instructors:
  • Preprint and archive servers:
  • Affordable legitimate options:

    • Search for "Clark's Table of Isotopes" on Archive.org. You may find scanned copies of the 1st, 2nd, or 3rd editions (circa 1950s-1960s). While the half-life data for some isotopes is slightly outdated, for general physics education, it is perfectly usable and 100% legal.

    You might be thinking, "Why do I need a book when I have Google and WolframAlpha?"

    While the internet is vast, Clark’s Table is curated. When you are in an exam setting or working under time pressure, you don't want to sift through varying answers online. You need standardized, universally accepted values.

    Here are 3 reasons why the PDF version is a lifesaver:

    The Good:

    The Bad: