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Which of the following correctly represe...

Which of the following correctly represent the electronic distribution in the `Mg` atom ?

A

`3,8,1`

B

`2,8,2`

C

`1,8,3`

D

`8,2,2`

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The correct Answer is:
B
correct answer b
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DINESH PUBLICATION-STRUCTURE OF ATOM -Multiple choice question
  1. Which of the following correctly represent the electronic distribution...

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  2. Rutherford's alpha (alpha) particles scattering experiment resulted in...

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  3. The number of electrons in an element X is 15 and the number of neutro...

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  4. Dalton's atomic theory successfully explained. (i) Law of conservat...

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  5. Which of the following statements about Rutherford model of atom are c...

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  6. Which of the following are true for an element ? (i) Atomic number =...

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  7. In the Thomson's model of atom, which of the following statement are c...

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  8. Rutherford's alpha-particle scattering experiment showed that (i) el...

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  9. The ion of an element has 3 positive charges. Mass number of the atom ...

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  10. Identify the Mg^(2+) ion from the figure where, n and p represent the ...

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  11. In a sample of ethyl ethanote (CH(3)COOC(2)H(5)) the two oxygen atoms ...

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  12. Elements with valency 1 are

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  13. The first model of an atom was given by

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  14. An atom with 3 protons and 4 neutrons will have a valency of

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  15. The electron distribution in an aluminium atom is

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  16. Which of the following in figure do not represent Bohr's model of an a...

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  17. Which of the following statement is always correct?

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  18. Atomic models have been improved over the years. Arrange the following...

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  19. Atom of an element has one proton one electron and no neutron .Name th...

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  20. Write any two observation which support the fact that atoms are divisi...

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