Which of the following is the farthest from the center of an atom?
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The center of an atom contains protons (positively charged) and neutrons (no charge). These two parts constitute the nucleus of an atom, they are sometimes referred to as nucleons .
When, Rutherford conducted the gold foil experiment, he found that positively charged alpha particles(doubly charged helium ions), rebounded from the atom very rarely, and more rarer was a 1 8 0 ∘ rebounce.
From this he concluded that the almost whole mass of an atom lies in the center. And that, it mostly contained positive charge.
Electrons on the other hand are very small particles (approximately 1 8 3 8 1 times less heavy than a proton), which are negatively charged and revolve around the atom. The electrons are situated so far from the nucleus, that if the space between them was removed, all the matter on earth can be compressed to the size of an apple!