Isn't it nice to have the same information to depend on, that you know will be reused? ... Wait, who said that you were getting that information?
Hint 1 (Incorrect Integers):
What might that green arrow point out? [For the colourblind, the green arrow is the only arrow without a question mark underneath.]
Hint 2 (Weird Weights):
I wonder why lithium has "CPU" under it, and whether that might help work out what the other weights mean.
Hint 3 (Incorrect Integers):
There are exactly two of each '(1)', '(2)' and '(3)'.
Hint 4 (Incorrect Integers):
The extraction to a word from this puzzle is similar to Weird Weights in the final step.
Hint 5 (metapuzzles):
The letters in the grey circles at the top spell “meta” when rearranged.
Hint 6 (metapuzzles):
Hint 7 (metapuzzles):
The above image specifically relates to ionic bonds.