Question

14. 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.
1
(c) The mass of an electron is about times that of proton.
2000
(d) An isotope of iodine is used for making tincture iodine,
which is used as a medicine.
Plss answer it urgent​

Answer 1

Explanation:

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

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

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

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

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