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NCERT EXEMPLAR-STRUCTURE OF THE ATOM-Structure Of The Atom
- One electron is present in the outermost shell of the atom of an eleme...
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- Write down the electron distribution of chlorine atom. How many electr...
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- In the atom of an element X, 6 electrons are present in the outermost ...
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- What information do you get from the figure about the atomic number, m...
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- In response to a question, a student stated that in an atom, the numbe...
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- Calculate the number of neutrons present in the nucleus of an element ...
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- Match the names of the Scientists given in Column A with their contrib...
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- The atomic number of calcium and argon are 20 and 18 respectively, but...
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- Complete the table on the basis of information available in the symbol...
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- Helium atom has 2 electrons in its valence shell but its valency is no...
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- Fill in the blanks in the following statements. (a) Rutherford's alp...
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- An element X has a mass number 4 and atomic number 2. Write the valenc...
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- Why do helium, neon and argon have a zero valency?
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- The ratio of the radii of hydrogen atom and its nucleus is ~ 10^(5). ...
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- Enlist the conclusions drawn by Rutherford from his alpha-ray scatteri...
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- In what way is the Rutherford's atomic model different from that of Th...
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- What were the drawbacks of Rutherford's model of an atom?
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- What are the postulates of Bohr's model of an atom?
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- Show diagramatically the electron distributions in a sodium atom and a...
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- In the gold foil experiment of Geiger and Marsden, that paved the way ...
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