What experiment did robert millikan do

I think this is the answer but he did the oil drop experiment, i hope this helps

he used voltage adjustments to make charged oil drops float.

Explanation:

just did it on apex

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

it is the most commonly accepted one