State whether the following statement is true or false :

Radioactive isotope of iodine is used for making the medicine called tincture iodine.

State whether the following statement is true or false : Radioactive isotope of iodine is used for making the medicine called tincture iodine.

Isotope of iodine is used for making tincture of iodine in medicines. Is it true or false?

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 times that of proton.

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