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Why could no fixed position be given to ...

Why could no fixed position be given to hydrogen in Mendeleev's periodic table?

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Hydrogen resembles alkali metals in its electronic configuration and halogens as it also exists as a diatomic molecule and combines with metals and non-metals to form covalent compounds hence it could not be assigned a fixed position in Mendeleev.s periodic table.
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OSWAL PUBLICATION-DIKSHA QUESTIONS -PERIODIC CLASSIFICATION OF ELEMENTS (LONG ANSWER)
  1. Which important property did Mendeleev use to classify the elements in...

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  2. State Mendeleev's periodic law.

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  3. Why could no fixed position be given to hydrogen in Mendeleev's period...

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  4. State how atomic size varies from left to right in a period and from t...

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  5. Atoms of eight elements A, B, D, E, F, G and H have the same number of...

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  6. Atoms of eight elements A, B, D, E, F, G and H have the same number of...

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  7. Atoms of eight elements A, B, D, E, F, G and H have the same number of...

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  8. Atoms of eight elements A, B, D, E, F, G and H have the same number of...

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  9. Atoms of eight elements A, B, D, E, F, G and H have the same number of...

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  10. Why do we classify elements?

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  11. What were the criteria used by Mendeléev in creating his Periodic Tabl...

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  12. Why did Mendeleev leave some gaps in his Periodic Table?

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  13. In Mendeleev's periodic table, why were noble gases like helium, neon ...

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  14. Would you place the two isotopes of chlorine, Cl-35 and Cl-37 in diffe...

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  15. The Modern periodic table has been evolved through the early attempts ...

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  16. State Modern periodic law.

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  17. Name the scientist who first of all showed that atomic number of an el...

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  18. Two elements X and Y have atomic numbers 19 and 17 respectively. Give ...

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  19. How does the atomic radius change as we go: (i) from left to right ...

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  20. Two elements X and Y have atomic numbers 12 and I 6 respectively. Writ...

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