So let's say we have a sheet of white paper on the desk. We then put some confetti on top of the white paper. We cause a white plate to be positively charged by friction (rubbing on the desk) and place that plate above the confetti.
The confetti was being attracted to the plate, which makes sense.
If we change that white paper with aluminum foil, things change a bit. The confetti is not being attracted to the plate anymore! In order to make this possible, it makes sense to assume that less electrons were present in the confetti because electrons were transferred from the confetti to the aluminum foil (conduction), which in effect prevented the attraction between the positively charged plate and the confetti.
But what I don't understand is that, before the plate was placed above the confetti, the confetti was neutral as well as the aluminum foil! So there can't be any transfer of electrons between neutral objects! So.. if there is no transfer of e's, then why is it that the confetti is not being attracted to the plate when using a sheet of aluminum foil beneath them?
Please explain at a high-school level! I might not understand some deep stuff