Answer
Verified
396.6k+ views
Hint: We must know that Ernest Rutherford discovered the nucleus of the atom. Ernest Rutherford put forward the nuclear structure of the atom, discovered alpha and beta rays, and also projected the laws of radioactive decay.
Complete step by step answer:
We must know that the nuclear theory of the atom was put forward by Rutherford. Nowadays we know the Rutherford's atomic model now popularly known as the nuclear model. Following main points are concluded in nuclear model:
The nucleus is the tiny, dense, central core of the atom that comprises protons and neutrons.
The protons and neutrons in the nuclear atom comprise nearly all of the mass of the atom, and are located in the nucleus at the center of the atom.
This concentrated central mass is responsible for deflecting both alpha and beta particles.
The electrons are distributed around the nucleus that revolve in an orbit and occupy most of the volume of the atom.
The atom is about 105 times the diameter of the nucleus. This could be correlated with putting a grain of sand in the middle of a football field.
Hence, Option A is correct.
Note:
Also, we must know the Bohr model of the atom was developed by Niels Bohr Danish physicist, in which he projected that energy levels of electrons are discrete and electrons revolve in stable orbits around the atomic nucleus.
Sir Joseph John Thomson (J J Thomson) was a British physicist who discovered the first subatomic particle, the electron.
Francis William Aston was a Physicist and is well known for his discovery of many non-radioactive elements and for the whole number rule.
Complete step by step answer:
We must know that the nuclear theory of the atom was put forward by Rutherford. Nowadays we know the Rutherford's atomic model now popularly known as the nuclear model. Following main points are concluded in nuclear model:
The nucleus is the tiny, dense, central core of the atom that comprises protons and neutrons.
The protons and neutrons in the nuclear atom comprise nearly all of the mass of the atom, and are located in the nucleus at the center of the atom.
This concentrated central mass is responsible for deflecting both alpha and beta particles.
The electrons are distributed around the nucleus that revolve in an orbit and occupy most of the volume of the atom.
The atom is about 105 times the diameter of the nucleus. This could be correlated with putting a grain of sand in the middle of a football field.
Hence, Option A is correct.
Note:
Also, we must know the Bohr model of the atom was developed by Niels Bohr Danish physicist, in which he projected that energy levels of electrons are discrete and electrons revolve in stable orbits around the atomic nucleus.
Sir Joseph John Thomson (J J Thomson) was a British physicist who discovered the first subatomic particle, the electron.
Francis William Aston was a Physicist and is well known for his discovery of many non-radioactive elements and for the whole number rule.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Write an application to the principal requesting five class 10 english CBSE
Difference Between Plant Cell and Animal Cell
a Tabulate the differences in the characteristics of class 12 chemistry CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
Discuss what these phrases mean to you A a yellow wood class 9 english CBSE
List some examples of Rabi and Kharif crops class 8 biology CBSE