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An element 'X' has its electronic config...

An element 'X' has its electronic configuration of 'K' shell is `(n-5)s^(2)` and it has total number of electrons in its outermost, penultimate and antipenultimate shell are 2,8 and 25 respectively then find out total number of unpaired electrons in element 'X' in their ground state.

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VK JAISWAL ENGLISH-PERIODIC PROPERTIES-SUBJECTIVE PROBLEMS
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  2. Consider the following Borh-Habber's cycle for formation of MX(3)(s). ...

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  3. Calculate value of -U/100, for AB(s), from following data of Born-Habe...

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  4. Consider the following orders: (i) HF gt HCl gt HBr gt HI: Lewis bas...

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  5. Find out total number of representative elements in the given element:...

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  6. An element 'X' has its electronic configuration of 'K' shell is (n-5)s...

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  7. if value of spin quantum number(s)=-1//2,0,+1//2 then calculate number...

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  8. How many pairs are, in which first species has lower ionisation enegy ...

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  9. Total number of element(s) which have only single oxidation state (oth...

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  10. The number of electrons for Zn^(2+) cation that have the value of azim...

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  11. Calculate the electronegativity of silicon atom using Allred-rochow's ...

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  12. If heat of solution for AB(s) is -0.95xx10^(x) kcal/mol and lattice en...

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  13. Consider the following Borh-Habber's cycle for formation of MX(3)(s). ...

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  14. Calculate value of -U/100, for AB(s), from following data of Born-Habe...

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  15. Consider the following orders: (i) HF gt HCl gt HBr gt HI: Lewis bas...

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  16. Find out total number of representative elements in the given element:...

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  17. An element 'X' has its electronic configuration of 'K' shell is (n-5)s...

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  18. if value of spin quantum number(s)=-1//2,0,+1//2 then calculate number...

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  19. How many pairs are, in which first species has lower ionisation enegy ...

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  20. Total number of element(s) which have only single oxidation state (oth...

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