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Name or state with reference to the elem...

Name or state with reference to the elements of the modern periodic table.
The noble gas having duplet arrangement of electrons.

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Helium (He)
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ICSE-THE PERIODIC TABLE -TOPIC 1 Modern Periodic Table and its Periodicity (2 Marks Questions )
  1. Arrange the following elements Li, B, O, Be, N,F in the order of decre...

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  2. Arrange the following elements Li, B, O, Be, N,F in the order of metal...

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  3. Name or state with reference to the elements of the modern periodic ta...

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  4. With reference of first three periods of the periodic table. Metallo...

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  5. With reference of first three periods of the periodic table. Valency...

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  6. With reference of first three periods of the periodic table. Noble g...

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  7. What is the total number of elements in the I group of the modern peri...

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  8. What is the total number of elements in the II group of the modern per...

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  9. What is the total number of elements in the III group of the modern pe...

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  10. Name two elements of group II

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  11. State variation in number of shells in Period

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  12. State variation in number of shells in Group

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  13. Compare and contrast the arrangement of elements in Mendeléev’s Period...

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  14. An element has electronic configuration 2,8,7 What is the valency...

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  15. An element has electronic configuration 2,8,7 The element will sh...

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  16. What is new notation used instead of old notation for group given belo...

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  17. Identify the common name of group of elements based on following facts...

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  18. Identify the common name of group of elements based on following facts...

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  19. Identify the common name of group of elements based on following facts...

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  20. Identify the common name of group of elements based on following facts...

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