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Chemistry, 22.06.2019 22:30, kristen17diaz
How many valence electrons are in atom of radon?
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Chemistry, 23.06.2019 01:30, Sonicawesomeness
Select the correct answer from each drop-down menu. to make a table of the elements, dmitri mendeleev sorted the elements according to their . he then split the list of elements into several columns so that elements beside each other had similar .
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Which elements are likely to close electrons?...
Mathematics, 06.05.2020 18:05