The Student Room Group

pls help i have 20 mins to submit plzplz

HI ANYONE WHO SEES THIS PLZ CAN U HELP WITH THESE THREE QUESTIONS FOR SCIENCE I HAVE NO CLUE HOW TO ANSWER!!! ANY ANSWER IS APPRECIATED!! JUST PLZ!

b) Explain how the scientific community were influenced to accept Mendeleev's periodic table.

c) Why in 1869 could scientists not explain why some pairs of elements in Mendeleev's periodic table appeared to be in the wrong order according to their atomic weights?

d) Explain how the atoms of Magnesium and oxygen change when they react to form their ions.
i wish i knew

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