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How many protons and neutrons are presen...

How many protons and neutrons are present in`""_(8)^(18 )O?`

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NCERT BANGLISH-ATOMIC STRUCTURE-I-QUESTIONS (C. WRITE IN ONE OR TWO SENTENCE)
  1. What is an orbital?

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  2. Give the order of filling of electrons in the following orbitals 3p, 3...

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  3. What is meant by principal quantum number?

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  4. How many protons and neutrons are present in""(8)^(18 )O?

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  5. What are the particles generally present in the nuclei of atoms?

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  6. The atomic mass of an element is 24 and its atomic number is 12. Show ...

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  7. What is the principal defect of Bohr atom model?

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  8. Write the complete symbol for : (a) The nucleus with atomic number 56 ...

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  9. An atomic orbital has n = 3. What are the possible values of l ?

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  10. An atomic orbital has l= 3. What are the possible values of m?

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  11. Give the electronic configuration of chromium. (Z=24).

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  12. Which energy level does not have p-orbital?

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  13. An atom of an element has 19 electrons. What is the total number of p...

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  14. How many electrons can have s+ ½ in a d-sub-shell?

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  15. Write the values of l and m for p-orbitals

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  16. Which quantum accounts for the orientation of the electron orbital?

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  17. What is shape of the orbital with (i) n = 2 and l = 0 , (ii) n = 2 and...

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  18. Give the values for all quantum numbers for 2p electrons in nitrogen ...

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  19. Give the electronic configuration of Mn^(2+) and Cu. Atomic number of ...

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  20. Explain why the electronic configuration of Cr andCu are written as 3...

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