Question

1. 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.
2000
(d) An isotope of iodine is used for making tincture iodine,
which is used as a medicine.

2. Rutherford's alpha-particle scattering experiment was
responsible for the discovery of
(a) Atomic Nucleus (b) Electron
(c) Proton
(d) Neutron​

Answer 1

Answer:

1. (a) F(False)

(b) F(False)

(c) T(True)

(d) T(True)

2. Option "A"(Atomic nucleus) because:⬇️

Explanation: ⬇️

The entire mass of the atom lies at the nucleus. The electrons which are negatively charged revolve around the positively charged nucleus in orbits. Rutherford's alpha particle scattering experiment was responsible for the discovery of the atomic nucleus. Hence, (A) is the correct option.

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