Diagram of the nuclear composition, electron configuration, chemical data, and valence orbitals of an atom of neodymium-144 (atomic number: 60), an isotope of this element. The nucleus consists of 60 protons (red) and 84 neutrons (orange). 60 electrons (white) successively occupy available electron shells (rings).
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the block will move to F but at the same time make it's way over to G because 250g weighs more than 100g
I think the answer is B. static charge. I hope this helps! :)