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प्रश्न
Name the central part of an atom where protons and neutrons are held together.
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उत्तर
The nucleus is the central part of an atom where protons and neutrons are held together.
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संबंधित प्रश्न
Draw a sketch of Bohr’s model of an atom with three shells.
Compare all the proposed models of an atom given in this chapter.
What are the various letters used by Bohr to represent electron shells in an atom?
Describe Bohr's model of the atom. How did Neils Bohr explain the stability of atom?
Explain the postulates of Bohr’s atomic model.
Which of the following in Fig. 4.2 do not represent Bohr’s model of an atom correctly?
What are the Limitations of Bohr’s Model?
The atomic model based on quantum theory was first proposed by ______.
Given below are two statements:
Statement I: Atoms are electrically neutral as they contain equal number of positive and negative charges.
Statement II: Atoms of each element are stable and emit their characteristic spectrum.
In the light of the above statements, choose the most appropriate answer from the options given below:
A particle of mass ‘m’ and charge ‘−2q’ is moving around a very heavy particle having charge ‘q’. If Bohr’s model is to be used then the orbital velocity of mass ‘m’ when it is nearest to the heavy particle is (in magnitude) (ε0 = permittivity of free space, h = Planck’s constant) ______.
