i need help..brainliest ko po ung unang makakuha ng tamang sagot thank you =)
nonsense answer=REPORT :-)
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i need help..brainliest ko po ung unang makakuha ng tamang sagot thank you =)
nonsense answer=REPORT :-)
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Answer:
johann dobereiner
contribution: discovered the halogen triad and the alkali metal triad
john newland
contribution: published his own version of the periodic table
dmitri mendeleeve
contribution: published his periodic table, eventually becoming the father of the periodic table
i hope it help!