Bohr’s Model of an Atom: To overcome the objections raised against Rutherford’s model of the atom, Neil Bohr put forward the following postulates about the model of an atom:
Evidences in Support of Divisibility of Atom: Following observations show that atom is made up of different particles like electrons, protons and neutrons, i.e. atom is divisible:(i) Formation of ionic compounds is possible due to the formation of ions which involves the transfer of electrons.(ii) Presence of isotopes for the same element is possible due to the difference in the number neutrons.
Which of the following statement / statements are correct : (a) The electrons present in first energy level (E1) have lowest energy (b) Atom consists of negatively charged nucleus. (c) Starting from nucleus, energy levels (orbits) are represented by numbers. (d) Starting from nucleus, energy levels (orbits) are represented by symbols. | |||
Right Option : C | |||
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The Statement that does not belong to Bohr's model of atom, is: | |||
Right Option : D | |||
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Which of the following statement / statements are correct : (a) Energy of an electron remains same as long as it remains in discrete orbit and it does not radiate energy while revolving. (b) Starting from nucleus, energy levels (orbits) are represented by numbers (1, 2, 3, 4 etc.) or by alphabets (K, L, M, N etc.). | |||
Right Option : C | |||
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