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Successive ionization enthalpies (in eV/...

Successive ionization enthalpies (in eV/atom) of on element are 5,8,9,90,100. The number of valence electrons are:

A

1

B

2

C

3

D

4

Text Solution

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Number of valence electron =3 as difference between `IE_(3) & IE_(4)` is very high.
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BANSAL-TEST PAPERS-CHEMISTRY
  1. Name of element with atomic number (z)=110.

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  2. Which of the following is exothermic:

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  3. Successive ionization enthalpies (in eV/atom) of on element are 5,8,9,...

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  4. Which of the following statement is correct for an element having atom...

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  5. To which block He belongs.

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  6. Which of the following is not a bridge element of in Mendeeleev's tabl...

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  7. Maximum number of electron that can exist in completely filled n=4 enr...

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  8. Which of the following is incorrect order of electron affinity:

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  9. If screening does not split the subshell(l) of a given shell(n), how m...

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  10. Which of the following element will have highest ionization energy?

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  11. The first (Delta(i)H(1) and second (Delta(i)H(2) ionization enthalpies...

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  12. The first (Delta(i)H(1) and second (Delta(i)H(2) ionization enthalpies...

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  13. The increasing order of atomic radius:

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  14. The increasing order of electron affinity.

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  16. In an atom, the maximum number of electron having quantum number n-3,-...

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