Atomic Structure MCQ Class 11. We covered all the Atomic Structure MCQ Class 11 in this post for free so that you can practice well for the exam.
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MCQ on Atomic Structure for School Students
Which of the following is called sub atomic particle
1. Electron
2. Proton
3. Neutron
4. All above
Option 4 – All above
Which particle is located in nucleus
1. Proton
2. Neutron
3. (1) & (2)
4. Electron
Option 3 – (1) & (2)
Charge of electron
1. Negative
2. Positive
3. Neutral
4. None
Option 1 – Negative
Positive charge particle is
1. Electron
2. Proton
3. Neutron
4. All above
Option 2 – Proton
The positive Nuclear charge is neutralized by
1. Electrons
2. Protons
3. Neutrons
4. Other atom Nucleus
Option 1 – Electrons
Which particles revolve around the nucleus
1. Protons
2. Electrons
3. Neutrons
4. Positrons
Option 2 – Electrons
The first atomic model was proposed by
1. J.J. Thomson
2. Rutherford
3. Bohr
4. Sommerfield
Option 1 – J.J. Thomson
Who discovered electrons
1. Bohr
2. J.J. Thomson
3. Planck
4. Lande
Option 2 – J.J. Thomson
Water-melon model of an atom was Introduced by
1. Plank
2. Spin
3. Bohr
4.J.J. Thomson
Option 4 – J.J. Thomson
In which model the electrons were placed inside the nucleus
1. Water-melon
2. Planetary
3. Bohr’s
4. Sommer fields
Option 1 – Water-melon
Which of the following model could not account atomic spectra
1. Water-melon
2. Planetary
3. Bohr’s’
4. Sommer fields
Option 1 – Water-melon
Who proposed planetary model of an atom
1. J.J. Thomson
2. Bohr
3. Rutherford
4. Plank
Option 3 – Rutherford
Which of the following model is proposed based on a ray scattering experiment
1. Planetary
2. Water-melon
3. Bohr’s model
4. None
Option 1 – Planetary
According to planetary model or Nuclear model atoms are
1. Spherical in shape
2. Circular in shape
3. Rectangular in shape
4. Cylindrical in shape
Option 1 – Spherical in shape
The nucleus is made up of
1. Electrons and protons
2. Electrons and neutrons
3. Protons and neutrons
4. All above
Option 3 – Protons and neutrons
According to classical laws of physics a moving particle should lose
1. Mass
2. Velocity
3. Energy
4. None
Option 3 – Energy
If the electrons loses energy continuously the atomic spectra should consist of
1. Continuous bands
2. Discrete spectral lines
3. (1) and (2)
4. None
Option 1 – Continuous bands
Atomic Spectra is made of up
1. Continuous bands
2. Discrete spectral lines
3. (1) and (2)
4. None
Option 2 – Discrete spectral lines
The scientist who discovered neutrons is
1. J.J. Thomson
2. Goldstein
3. G.J. Stoney
4. Chadwick
Option 4 – Chadwick
Cathode rays are deflected towards …… pole in a magnetic field.
1. South pole
2. North pole
3. Both South & North
4. None
Option 2 – North pole
Atoms are made up of
1. Molecules
2. Elements
3. Ions
4. Sub atomic particles
Option 4 – Sub atomic particles
Cathode rays travel in straight line, they are
1. Positively charged particles
2. Negatively charged particles
3. Positively charged ions
4. Negatively charged ions
Option 2 – Negatively charged particles
Name the scientist who named cathode ray particle as an electron
1. G.J. Stoney
2. Niels Bohr
3. Schrodinger
4. Heisenberg
Option 1 – G.J. Stoney
According to one of the following theories, atom cannot be divided further
1. Raman
2. J.J. Thomson
3. Rutherford
4. Dalton
Option 4 – Dalton
Cathode rays were invented by one of the following scientists
1. Bohr
2. J.J. Thomson
3. Goldstein
4. James Chadwick
Option 3 – Goldstein
Atomic number (Z) is equal to the number of
1. neutrons
2. neutrinos
3. electrons
4. None of the above
Option 3 – electrons
Alpha particles could be defined as
1. protons removed from helium atom
2. electrons removed from lithium atom
3. electrons removed from helium atom
4. helium atom
Option 3 – electrons removed from helium atom
Entire mass of the atom is located in the
1. orbits surrounding the nucleus
2. centre of the atomic sphere
3. electrons only
4. none of the above
Option 2 – centre of the atomic sphere
Mass of the proton is ……. times greater than the electron.
1. 2350
2. 1837
3. 1950
4.2000
Option 2 – 1837
Matter is composed of smallest particles called as
1. molecules
2. particles
3. atoms
4. packages
Option 3 – atoms
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