Question

The plum pudding model hypothesized by Thompson shows the scattering of electrons. When was this discovered in relation to other scientist's atomic hypotheses?

After Rutherford but before Chadwick
Before Bohr but after Chadwick
Before Bohr and Rutherford
After Rutherford but before Bohr

Answer 1

Answer: Before Rutherford

Step-by-step explanation:

The plum pudding model was proposed by J.J. Thomson in 1904, before the experiments conducted by Ernest Rutherford in 1909 that led to the discovery of the atomic nucleus. Therefore, the correct answer is "Before Rutherford".

Answer 2

Before Bohr and Rutherford

Step-by-step explanation:

The plum pudding model was proposed by J.J. Thomson in 1904, before both Ernest Rutherford's gold foil experiment in 1911 and Niels Bohr's atomic model in 1913. Therefore, the correct answer is before Bohr and Rutherford.