I found a definition insufficient on the Atomic number, atomic mass, and isotopes sheet

Hi there!

Thanks for reporting this! For future reference, it's best to report errors in videos or articles directly on the page for it's the fastest way for the information to get directly to the people responsible for that part of the site, and you can receive a badge for reporting clarifications that are accepted by the content team!

To do this please follow these steps (note that the instructions will be shown in your own language):

• Begin typing in the Ask a question text box under the video or article
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This feedback will go directly to the Content team and they'll take any necessary steps.

Please let me know if there's anything else I can do for you, I'm happy to help!

Best,

Alex