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""(5 ) ""(6 ) C ,""(7 ) N , ""(8 ) ...

`""_(5 ) ""_(6 ) C ,""_(7 ) N , ""_(8 ) O ,""_(9 ) Fe .""_(10 ) Ne ` are in a period in the periodic table .
what are the valencies of the given elements ?

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Valencies of the elements
`""_(5 ) B=3:""_(6 )C=4 , ""_(7 ) N = 3`
`""_(8 ) D = 2 , ""_(9) F = 1 , ""_(10) Ne = 0 `
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  2. ""(5 ) ""(6 ) C ,""(7 ) N , ""(8 ) O ,""(9 ) Fe .""(10 ) Ne ar...

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  3. ""(5 ) ""(6 ) C ,""(7 ) N , ""(8 ) O ,""(9 ) Fe .""(10 ) Ne ar...

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  4. ""(5 )B ""(6 ) C ,""(7 ) N , ""(8 ) O ,""(9 ) F .""(10 ) Ne ar...

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  5. Group : Be - Mg -Ca -Sr -Ba -Ra Period : Na -Mg -Al - Si - S -C...

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  6. Write the elements in the ascending order of their atomic radii

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  7. Some elements belonging to second period of periodic table , an...

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  8. Some elements belonging to second period of periodic table , an...

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  9. Some elements belonging to second period of periodic table , an...

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  10. Ionization Fotential curve is the group of atomic number versus...

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  11. Ionization Fotential curve is the group of atomic number versus...

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  12. Ionization Fotential curve is the group of atomic number versus...

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  13. Ionization Fotential curve is the group of atomic number versus...

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  14. The electrons configuration of atom A is 2,8,6 What is the a...

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  15. The electrons configuration of atom A is 2,8,6 stable whethe...

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  16. The electrons configuration of atom A is 2,8,6 Which of the ...

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  17. The electrons configuration of atom A is 2,8,6 How the eleme...

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