question_answer4) What can be concluded from the constancy of e/m ratio?
question_answer5) What is the pressure and voltage at which cathode rays are produced?
question_answer6) Find the number of protons whose mass is equal to I S.I unit of mass.
question_answer7) Write charge and mass of electron, proton and neutron.
question_answer9) Name the gas that produces positive rays consisting only protons.
question_answer11) What is the e/m ratio of a neutron?
question_answer12) How did Rutherford explain the stability of the atom?
question_answer13) What are the drawbacks of Rutherford's atomic model?
question_answer15) What are the other names for Rutherford's atomic model?
question_answer17) What was the purpose of ZnS in Rutherford's gold foil experiment?
question_answer18) What is the composition of \[\alpha \]- rays?
question_answer19) Name the scientist who predicted the presence of neutrons inside the nucleus.
question_answer20) Name the scientist who introduced the concept of orbits.
question_answer21) What are the names given by Neils' Bohr to different orbits of an atom?
question_answer22) Why are Bohr's orbits called Stationary orbits?
question_answer24) Can an electron shift its position from one orbit to another? If so, how?
question_answer25) What is the energy of 'n' quanta whose frequency is 'y'?
question_answer33) Identify the element whose atomic number and mass number are same.
question_answer35) Name a few elements whose mass number is double their atomic numbers.
question_answer37) Why does atomic number not change during a chemical reaction?
question_answer43) Write the electronic configuration of \[M{{g}^{2+}}\]and \[C{{l}^{-}}\]
question_answer45) Find the number of 'M' electrons in \[_{13}A{{l}^{27}}\]
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