Question

the neutron particles were isolated by chadwick and contained a neutral electrical charge. when was this discovered in relation to other scientists atomic hypotheses?
after rutherford but before thomson
before thomson but after bohr
before bohr and rutherford
after thomson and rutherford

Explanation:

J. J. Thomson discovered the electron in 1897. Ernest Rutherford proposed the nuclear - model of the atom in 1911. Niels Bohr proposed his atomic model in 1913. James Chadwick discovered the neutron in 1932. So Chadwick's discovery of the neutron came after Thomson and Rutherford's atomic hypotheses.

Answer:

D. After Thomson and Rutherford