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Cl^(-) has completely filled K and L she...

`Cl^(-)` has completely filled K and L shells. Explain.

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Atomic number of `Cl` is 17, but `Cl^(-)` has one more electron when compared with `Cl` atom.
Distribution of electrons in `Cl^(-)` is `|{:(K,L,M),(2,8,8):}`
K shell can accommodate 2 electrons and L shell can accommodate 8 electrons according to the formula `2n^(2)`.
Hence the K and L shells are completely filled.
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VGS PUBLICATION-BRILLIANT-WHAT IS INSIDE THE ATOM ?-OBJECTIVE TYPE QUESTIONS
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  2. Which of the following is a wrong statement?

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  3. If there are no protons in an atom. The consequences are

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  4. 'X' is a subatomic particle. It has neither +ve nor -ve. Then 'X' is

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  5. If an alpha- particle comes closure to a proton, it ………………. Proton.

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  6. Electron do not fall in nucleus, because

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  7. Fluorine atom contains seven electronsin outermost shell, but its vale...

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  8. According to the electrolysis experiments conducted by ……………, the atom...

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  9. Mass of electron is ………………times less than that of proton.

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  10. Neutron was discovered by

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  11. The atoms of same element which have same numbers of protons, but have...

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  12. Match the following. {:("a) Plum pudding or ",),(" watermelon",),("...

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  13. From the above table no. of protons in 'Ar' is

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  14. From the above table valency of 'Ar' is

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  15. From the above table, what is the atomic number fo hydrogen?

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  16. From the above table no. of protons Neon is

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  17. Which of the sub-atomic particle is not in the hydrogen?

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  18. .(6)^(14)C,.(6)^(13)C, .(6)^(12)C what are these?

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  19. In .(6)^(14), how many neutrons are there?

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  20. Joseph John Thomson is appreciable because, he found

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  21. Rutherford is appreciable, because he found that

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