For the following statements, write T for True and F for False.
(i) J.J. Thomson’s proposed that the nucleus of an atom contains only nucleons.
(ii) A neutron is formed by an electron and a proton combining together. Therefore, it is neutral.
(iii) The.mass of an electron is about 1/2000 times that of proton.
(iv) An isotope of iodine is used for making . tincture of iodine, which is used as a medicine.
(i) (F) Because in J.J. Thomson’s model, nucleus was not present.
(ii) (T)${}{-1}^{0}e$(electron) +
${}{1}^{1}p$(proton)--------->
${}_{1}^{0}n$(neutron
(iii) (T) Mass of electron is 1/1840 times, i.e. about 1/2000 times that of the proton.
(iv) (F) Tincture of iodine is made by dissolving normal iodine in alcohol. It is not obtained from the isotope of iodine.