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Name the scientist who first of all show...

Name the scientist who first of all showed that atomic number of an element is a more fundamental property than its atomic mass.

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Henry Moseley.
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OSWAL PUBLICATION-DIKSHA QUESTIONS -PERIODIC CLASSIFICATION OF ELEMENTS (LONG ANSWER)
  1. What were the criteria used by Mendeléev in creating his Periodic Tabl...

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

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

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

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

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  6. State Modern periodic law.

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

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

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

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

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  11. An element placed in Group 14 and 2nd period of the Periodic Table, bu...

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  12. An element placed in Group 14 and 2nd period of the Periodic Table, bu...

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  13. An element placed in Group 14 and 2nd period of the Periodic Table, bu...

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  14. Priya took an element X which is a yellow solid at room temperature an...

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  15. Priya took an element X which is a yellow solid at room temperature an...

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  16. Priya took an element X which is a yellow solid at room temperature an...

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  17. Priya took an element X which is a yellow solid at room temperature an...

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  18. Priya took an element X which is a yellow solid at room temperature an...

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

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  20. Two elements A and B have atomic numbers 11 and 17 respectively. Answe...

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