• canpolatOP
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    1 year ago

    You can change the captcha using the refresh button next to it. But Nd is not a problem. Its atomic number is 60. You need to add up to 200. Fm: 100, Zr: 40. I knew that memorizing atomic numbers would pay back some day :P

    • Greidlbeere@feddit.de
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      1 year ago

      Ohh, I’m dumb. I mistook atomic number for atomic weight. English is not my first language. Thank you!