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State Mendeleev's periodic law....

State Mendeleev's periodic law.

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Mendeleev.s periodic law states that the properties of elements are periodic function of their atomic masses.
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State Modern Periodic Law ? Why is it considered better than Mendeleev's periodic law for the classification of the elements ?

(a) What was the basis of Mendeleev's Classification of elements ? (b) List two achievements of Mendeleev's periodic tables. (c) List any two observations which posed a challenge to Mendeleev's periodic law.

Which of the following states that properties of elements are a periodic function of their atomic number''? A) Dobereiner's triads B) Modern periodic law C) Newlands's law of octaves D) Mendeleev's periodic law

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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