Weegy: D. the atom contains a nucleus with protons and neutrons. User:
J. J. Thomson, a British physicist, was the first to identify the
A. atomic theory.
D. electron. Weegy: D. electron. User:
This scientist led a series of experiments that used high-speed lightweight atoms called alpha particles to bombard very thin pieces of gold foil. Some of the alpha particles went straight through the foil but a few ... (More)