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The problem of position of isotopes in t...

The problem of position of isotopes in the periodic table was avoided by arranging elements is ascending order of __________.

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Atomic number.
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CENGAGE CHEMISTRY-APPENDIX - INORGANIC VOLUME 1-Exercise very short
  1. How does ionisation energy vary (a) down the group and (b) along the p...

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  2. A and B belong to same group of periodic table. A has higher atomic nu...

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  3. The problem of position of isotopes in the periodic table was avoided ...

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  4. Two different elements may have same mass number but not the same .

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  5. When compared to lithium, it is easier to remove valence electron from...

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  6. Chlorine has electron affinity than fluorine.

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  7. Among (the non-radioactive) halogens the element that has the lowest e...

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  8. Name the radioactive element of group 17 and group 18 .

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  9. Among Li,Na,K,Rb,Cs, the element with the lowest ionisation energy is ...

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  10. Electron Gain Enthalpy

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  11. Generally electron gain enthalpy on going down a group, and on going...

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  12. Why is the second electron gain enthalpy negative (i.e. energy is abs...

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  13. Why fluorine has lesser electron gain enthalpy than chlorine?

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  14. Isoelectronic species have the same number of .

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  15. Lanthanides and actinides belong to block of the periodic table.

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  16. Generally, the atomic size along a period gradually decreases due to i...

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  17. The formula for fluoride of carbon is .

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  18. The solubility of alkali metal carbonateas one goes down the group.

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  19. The electronic configuration of Re^(3+) is (Xe)4f^(14)5d^(4), the numb...

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  20. Lother Meyer atttempts to classify the elements by plotting graph betw...

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