Question

For the following statements, write T for True and F for False.
(a) J.J.Thomson proposed that the nucleus of an atom contains only nucleons.
(b) A neutron is formed by an electron and a proton combining together. Therefore, it is neutral.
(c) The mass of an electron is about $\frac{1}{2000}$ times that of the proton.
(d) An isotope of iodine is used for making tincture iodine, which is used as a medicine.

Answer 1

(a) J.J.Thomson proposed that the nucleus of an atom contains only nucleons.(F).

(b) A neutron is formed by an electron and a proton combining together. Therefore, it is neutral. (F).

(c) The mass of an electron is about 1/2000 times that of proton.(T).

(d) An isotope of iodine is used for making tincture iodine, which is used as a medicine.(T).