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Besides gallium, which other elements ha...

Besides gallium, which other elements have since been discovered that were left by Mendeléev in his Periodic Table? (any two)

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Germanium, Scandium.
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MTG IIT JEE FOUNDATION-PERIODIC CLASSIFICATION OF ELEMENTS-NCERT Section
  1. What were the limitations of Newlands’ Law of Octaves?

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  2. Use Mendeléev’s Periodic Table to predict the formulae for the oxides ...

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  3. Besides gallium, which other elements have since been discovered that ...

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

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  5. Why do you think the noble gases are placed in a separate group?

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  6. How could the Modern Periodic Table remove various anomalies of Mendel...

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  7. Name two elements you would expect to show chemical reactions similar ...

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  8. Name: three elements that have a single electron in their outermost sh...

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  9. Name: two elements that have two electrons in their outermost shells.

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  10. Name: three elements with filled outermost shells.

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  11. Lithium, sodium, potassium are all metals that react with water to lib...

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  12. Helium is an unreactive gas and neon is a gas of extremely low reactiv...

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  13. In the Modern Periodic Table, which are the metals among the first ten...

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  14. By considering their position in the Periodic Table, which one of the ...

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  15. Which of the following statements is not a correct statement about the...

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  16. Element X forms a chloride with the formula XCl(2), which is a solid w...

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  17. which element has two shells, both of which are completely filled wi...

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  18. which element has the electronic configuration 2, 8, 2?

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  19. which element has a total of three shells, with four electrons in it...

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  20. which element has a total of two shells, with three electrons in its...

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