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Periods are ___ [5, 6, 7] horizontal rows of elements in the periodic table and an element with three electron shells and two electrons in its valence shell belongs to period _____ [6,3,1] and group ____[3,6,2]

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ICSE-PERIODIC TABLE (PERIODIC PROPERTIES AND VARIATION OF PROPERTIES)-ADDITIONAL QUESTIONS (Fill in the blanks with the appropriate word/s in each case.)
  1. Fill in the blanks with the appropriate word/s Periods are [5, 6,...

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  2. Fill in the blanks with the appropriate word/s Across a period the ...

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  3. Fill in the blanks with the appropriate word/s Across a period, the...

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  4. Fill in the blanks with the appropriate word/s Elements at the extr...

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  5. Fill in the blanks with the appropriate word/s Elements of group 1 ...

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  6. Fill in the blanks with the appropriate word/s The element in group...

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  7. Fill in the blanks with the appropriate word/s Periodicity in prope...

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  8. Fill in the blanks with the appropriate word/s Across a period the ...

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  9. Fill in the blanks with the appropriate word/s Nuclear charge of an...

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  10. Fill in the blanks with the appropriate word/s Atomic size of neon ...

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  11. Fill in the blanks with the appropriate word/s Atomic size across a...

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  12. Fill in the blanks with the appropriate word/s With increase in nuc...

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  13. Fill in the blanks with the appropriate word/s Increase in nuclear...

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  14. Fill in the blanks with the appropriate word/s Elements with stabl...

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  15. Fill in the blanks with the appropriate word/s An atom with a small...

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  16. Fill in the blanks with the appropriate word/s If combining atoms o...

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  17. Fill in the blanks with the appropriate word/s Elements with low el...

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  18. Fill in the blanks with the appropriate word/s An atom is said to b...

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  19. Fill in the blanks with the appropriate word/s Atoms with [small/l...

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  20. Fill in the blanks with the appropriate word/s Element 'X in period...

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