For the following statements, write T for true and F for false:

A radioactive isotope of iodine is used for making tincture iodine, which is used as a medicine.

For the following statements, write T for true and F for false:

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

For the following statements, write T for true and F for false:

The mass of an electron is about 1/2000 times that of a proton.

Rutherford's alpha-particle scattering experiment was responsible for the discovery of:

(a) Atomic nucleus (b) Electron

(c) Proton (d) Neutron

Isotopes of an element have :

(a) the same physical properties

(c) different number of neutrons

(b) different chemical properties

(d) different atomic numbers