The exercise was created 2020-10-15 by beccaforsberg. Question count: 20.
Normally, all words in an exercise is used when performing the test and playing the games. You can choose to include only a subset of the words. This setting affects both the regular test, the games, and the printable tests.
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https://spellic.com/eng/exercise/grundamnen-perodiska-systemet-20-forsta.9858127.html