According to Rutherford's atomic model, electrons revolve around the nucles. (True/False)
According to Rutherford's atomic model, electrons revolve around the nucles. (True/False)
The correct option is A True
Do you remember the conclusions of Rutherford's α - scattering experiment.
Here take a look Rutherford, on the basis of his observation, drew the following conclusions regarding the structure of atom:
(a) Since most of the α-particles passed through the foil undeflected, it indicates that most of the space in the atom is empty.
(b) A few positively charged α-particles were defected. The deflection must be due to an enormous repulsive force. This shows that the atom is not spread throughout the atom is Thomson had presumed. The positive charge is concentrated in a very small volume, which repelled and deflected the positively charged α-particles. Rutherford named this positive centre as nucleus.
(c) Rutherford calculated that the volume occupied by the nucleus is negligibly small as compared to the total volume of the atom. The radius of the atom is about 10−10 m, while that of nucleus is 10−10 m.
Rutherford, on the basis of his observations and conclusions, proposed the nuclear model of atom.
He gave the following postulates:
(a) Most of the mass and all the positive charge of an atom is concentrated in a very small region called nucleus. The size of the nucleus (∽10−15 ) is extremely small as compared to the size of the atom
(∽10−15 m).
(b) The positive charge on the nucleus is due to protons.
(c) The nucleus is surrounded by electrons, which move around the nucleus the nucleus with a very high speed in circular paths called orbits. Thus, Rutherford's model of atom resembles the solar system in which the nucleus plays the role of the sun and the electrons play the role of revolving planets.
(d) Electrons and nucleus are held together by electrostatic forces of attraction.
(e) Total negative charge on the electrons is equal to the total positive charge on the nucleus. As a result, the atom on the whole is electrically neutral.
(f) Most of the space inside an atom is empty.
(g) The centrifugal force arising due to the high speed of an electron balances the coulombic force of attraction of the nucleus, and the electron remains in its path.
True
Do you remember the conclusions of Rutherford's α - scattering experiment.
Here take a look Rutherford, on the basis of his observation, drew the following conclusions regarding the structure of atom:
(a) Since most of the α-particles passed through the foil undeflected, it indicates that most of the space in the atom is empty.
(b) A few positively charged α-particles were defected. The deflection must be due to an enormous repulsive force. This shows that the atom is not spread throughout the atom is Thomson had presumed. The positive charge is concentrated in a very small volume, which repelled and deflected the positively charged α-particles. Rutherford named this positive centre as nucleus.
(c) Rutherford calculated that the volume occupied by the nucleus is negligibly small as compared to the total volume of the atom. The radius of the atom is about 10−10 m, while that of nucleus is 10−10 m.
Rutherford, on the basis of his observations and conclusions, proposed the nuclear model of atom.
He gave the following postulates:
(a) Most of the mass and all the positive charge of an atom is concentrated in a very small region called nucleus. The size of the nucleus (∽10−15 ) is extremely small as compared to the size of the atom
(∽10−15 m).
(b) The positive charge on the nucleus is due to protons.
(c) The nucleus is surrounded by electrons, which move around the nucleus the nucleus with a very high speed in circular paths called orbits. Thus, Rutherford's model of atom resembles the solar system in which the nucleus plays the role of the sun and the electrons play the role of revolving planets.
(d) Electrons and nucleus are held together by electrostatic forces of attraction.
(e) Total negative charge on the electrons is equal to the total positive charge on the nucleus. As a result, the atom on the whole is electrically neutral.
(f) Most of the space inside an atom is empty.
(g) The centrifugal force arising due to the high speed of an electron balances the coulombic force of attraction of the nucleus, and the electron remains in its path.
