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In response to a question, a student sta...

In response to a question, a student stated that in an atom, the number of protons is greater than the number of neutrons, which in turn is greater than the number of electrons. Do you agree with the statement ? Justify your answer.

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The statement is wrong .In an atom number of protons and electrons are always equal .These can be different only in an ion (positive or negative )
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DINESH PUBLICATION-STRUCTURE OF ATOM -Short Answer Question
  1. complete the following table:

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  2. An element is represented as overset(16)underset(8)X.Find: (a) The n...

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  3. The electronic configuration of potassium (K) is 2,8,8,1 instedad of 2...

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  4. Show the electron distribution in magnesium atom and magnesium ion dia...

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  5. The composition of two atoms A and B is given: (a) What are the m...

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  6. (a) what is the relationship between two elements x and y whose atomic...

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  7. write the elctron distrubution of oxygen atom .How many valence elect...

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  8. (a) Why does helium have zero valecy? (b) Name the secientist and h...

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  9. Which observations in scatteing experiment led Rutherford to make the ...

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  10. Write the two postulates of Thomson's model o fan atom .What were the ...

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  11. (a) how many neutrons are present in c-14 isotope of carbon? (b) ho...

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  12. What information do you get from the figure about the atomic number, m...

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  13. In response to a question, a student stated that in an atom, the numbe...

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  14. Calculate the number of neutrons present in the nucleus of an element ...

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  15. Match the names of the Scientists given in Column A with their contrib...

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  16. The atomic number of calcium and argon are 20 and 18 respectively, but...

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  17. Complete the table on the basis of information available in the symbol...

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  18. Helium atom has 2 electrons in its valence shell but its valency is no...

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  19. Fill in the blanks in the following statements: (a) Rutherford's al...

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  20. An element X has a mass number 4 and atomic number 2. Write the valenc...

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