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Give the order of filling of electrons i...

Give the order of filling of electrons in the following orbitals 3p, 3d,4p, 3d and 6s.

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While filling up of electrons in the atomic orbitals, the 4s-orbital is filled before the 3d-orbital. Explain why.

While filling up of electrons in the atomic orbitals, the 4s-orbital is filled before the 3d-orbital but reverse happens during the ionisation of the atom. Explain why ?

Mention the sequence in which the following orbitals are filled up by electrons: 3d and 4p.

In which element does the last or differentiating electron enter into the 3 d orbital ? Write its atomic number and electronic configuration.

Arrange the following in order of increasing energy. 3s. 2p, 4s. 3d,4p.

The bromine atom possesses 35 electrons. It contains 6 electrons in 2p orbital. 6 electrons in 3p orbital and 5 electron in 4p orbital. Which of these electron experiences the lowest effective nuclear charge?

Increasing order of Electron affinity for following configuration. 1s^2 , 2s^2 , 2p^3 (b) 1s^2 2s^2 2p^4 [c] 1s^2 , 2s^2 , 2p^6 , 3s^2 , 3p^4 (d) 1s^2 , 2s^2 , 2p^6 , 3s^2 , 3p^3

Describe the orbitals with the following quantum numbers (using s, p, d, f notations) n = 4, l = 3,

Describe the orbitals with the following quantum numbers (using s, p, d, f notations) n = 4, l = 2,

Mention the difference in angular momentum of the electron belonging to 3p and 4p-subshell.

NCERT BANGLISH-ATOMIC STRUCTURE-I-QUESTIONS (C. WRITE IN ONE OR TWO SENTENCE)
  1. What are the charge and mass of an electron?

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  2. What is an orbital?

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

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  4. What is meant by principal quantum number?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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