Notifications
Clear all
0
29/12/2020 4:34 pm
Topic starter
For the following statements, write T for True and F for False.
1. J.J. Thomson proposed that the nucleus of an atom contains only nucleons.
2. A neutron is formed by an electron and a proton combining together. Therefore, it is neutral.
3. The mass of an electron is about times that of proton 1/2000
4. An isotope of iodine is used for making tincture iodine, which is used as a medicine.
1 Answer
0
29/12/2020 4:35 pm
1. F : Because it was not proposed by J.J. Thomson.
2. F : Because neutron is an independent sub-atomic particle.
3. T : Because it is a fact known from experiments.
4. F : Because tincture iodine is a solution of ordinary iodine in alcohol.