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Look at the atomic radii of some element...

Look at the atomic radii of some elements of the second period and answer the questions.

Arrange these elements in the decreasing order of their atomic radii.

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ICSE-PERIODIC PROPERTIES OF ELEMENTS -QUESTIONS FOR PRACTICE ON EXAMINATION PATTERN (SECTION II)
  1. What property of an element is measured by electronegativity.

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  2. Look at the atomic radii of some elements of the second period and ans...

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  3. Look at the atomic radii of some elements of the second period and ans...

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  4. Look at the atomic radii of some elements of the second period and ans...

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  5. Name one other element for each which is in the same group as (i) c...

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  6. If the element with atomic number 18 is a noble gas, to which group do...

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  7. The atomic number of helium is 2 and the atomic number of lithium is 3...

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  8. From the electronic configurations Na (2, 8, 1), Mg (2, 8, 2) and Al (...

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  9. From the electronic configurations Na (2, 8, 1), Mg (2, 8, 2) and Al (...

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  10. From the electronic configurations Na (2, 8, 1), Mg (2, 8, 2) and Al (...

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  11. From the electronic configurations Na (2, 8, 1), Mg (2, 8, 2) and Al (...

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  12. From the electronic configurations Na (2, 8, 1), Mg (2, 8, 2) and Al (...

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  13. An element belongs to group 17 and period 3 of the periodic table. Wri...

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  14. An element belongs to group 17 and period 3 of the periodic table. Wri...

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  15. An element belongs to group 17 and period 3 of the periodic table. Wri...

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  16. An element belongs to group 17 and period 3 of the periodic table. Wri...

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  17. Complete the given table :

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  18. An element X of group 15 and period 2 exists as diatomic molecule. It ...

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  19. An element X of group 15 and period 2 exists as diatomic molecule. It ...

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  20. An element X of group 15 and period 2 exists as diatomic molecule. It ...

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