MCQ on Structure of Atom Class 10

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

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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

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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

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The nucleus of hydrogen atom is called 1) Positron 2) Neutron 3) Proton 4) Electron

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The idea of fixed energy levels in an atom was given by 1) E Rutherford 2) R.A Mullikan 3) schrodinger 4) Neils Bohr

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E. Rutherford discovered 1) proton 2) neutron 3) nucleus 4) orbits

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Outermost shell of an atom cannot accommodate more electrons than 1) 2 2) 8 3) 18 4) 16

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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

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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

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