MCQ on Structure of Atom Class 10. We covered all the MCQ on Structure of Atom Class 10 in this post for free so that you can practice well for the exam.
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MCQ on Structure of Atom for Students
Which of the following elements have the same number of protons and neutrons in their atom?
1) Hydrogen
2) Beryllium
3) Carbon-12
4) Argon
Option 3 – Carbon-12
An electron is known as universal particle because
1) Its charge and mass ratio does not depend on the source of its emission
2) It has a fixed charge
3) It is found in all atoms
4) It is always present in cathode rays
Option 1 – Its charge and mass ratio does not depend on the source of its emission
Which of the following statements contradicts the characteristics of cathode rays
1) Cathode rays are common constituents of all matter
2) Cathode rays are not deflected by electrical and magnetic fields
3) Cathode rays ionize gases through which they pass
4) Cathode rays are material particles and can thus rotate a light paddle wheel placed in their path
Option 2 – Cathode rays are not deflected by electrical and magnetic fields
Which of the following particles and can thus rotate a light paddle wheel placed in their path
1) Electrons
2) Protons
3) Neutrons
4) Positrons
Option 2 – Protons
Who carried out the discharge tube experiment for the first time
1) Crookes
2) Goldstein
3) Chadwick
4) Thomson
Option 1 – Crookes
The charge to mass ratio on cathode rays in the discharge tube is constant because ………… are common constituents of all matter.
1) electrons
2) protons
3) neutrons
4) positrons
Option 3 – neutrons
When one neutron disintegrates, it produces
1) One proton and one electron
2) One proton only
3) One proton and one neutron
4) One electron and one neutron
Option 1 – One proton and one electron
Outermost shell of an atom cannot accommodate more electrons than
1) 2
2) 8
3) 18
4) 16
Option 2 – 8
E. Rutherford discovered
1) proton
2) neutron
3) nucleus
4) orbits
Option 3 – nucleus
The idea of fixed energy levels in an atom was given by
1) E Rutherford
2) R.A Mullikan
3) schrodinger
4) Neils Bohr
Option 4 – Neils Bohr
The nucleus of hydrogen atom is called
1) Positron
2) Neutron
3) Proton
4) Electron
Option 3 – Proton
The fundatmental particles present in a neutral atom which are equal is number are
1) Positron and electrons
2) Proton and electron
3) Neutrino and electron
4) Proton and neutron
Option 2 – Proton and electron
What determines the number of positive charge in the nucleus
1) No. of electrons removed
2) Ratio of protons to neutrons
3) The number of protons
4) The electropositive character of the atom
Option 4 – The electropositive character of the atom
There are four atoms A,B, C and D with atomic numbers 9,11,13 and 15 respectively. The atom containing less than 8 electrons in the second or L – shell is
1) A
2) B
3) C
4) D
Option 1 – A
We covered all the MCQ on structure of atom class 10 above in this post for free so that you can practice well for the exam.
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