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What is the relationship between an atom...

What is the relationship between an atom containing 11 protons, 11 electrons and 11 neutrons, and another atom containing 11 protons, 11 electrons and 12 neutrons ?

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Isotopes
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LAKHMIR SINGH & MANJIT KAUR-STRUCTURE OF ATOM-Exercise
  1. State whether the following statement is true is false : Radioactive...

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  2. What name is given to those atoms which contain the same numer of prot...

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  3. What is the relationship between an atom containing 11 protons, 11 ele...

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  4. What name is given to the pair of atoms such as .(7)^(14) N and .(7)^(...

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  5. What name is given to those isotopes which have unstable nuclei and em...

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  6. Fill in the following blanks in respect of an atom of an element :

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  7. Complete the following statements : (a) Magnesium has 2 valence elec...

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  8. The nucleus of an atom has 5 protons and 6 neutrons. What would be the...

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  9. Write the electronic configuration of the element with atomic number ...

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  10. The atomic number of an element X is 16 (a) Write down the electric ...

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  11. What valencies will be shown by the elements A, B, C, D and E having a...

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  12. Give one use each of the follwing radioactive isotopes : (a) Uranium...

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  13. Explain why .(1)^(3)H and .(2)^(3)He are not considered isotopes

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  14. What is the reason for the different atomic masses of the isotopes of ...

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  15. What is the reason for the identical chemical properties of all the is...

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  16. What is the reason for the slightly different physical properties of a...

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  17. Explain why, the atomic masses of many elements are in fractions and n...

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  18. Which of the following are isotopes and which are isobars ? Argon, D...

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  19. Hydrogen has three isotopes written as : .(1)^(1)H,.(1)^(2)H,.(1)^(3...

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  20. Given that the percentage abundance of the isotope .(10)^(20)N is 90 %...

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