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State modern periodic law of classificat...

State modern periodic law of classification of elements.

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Modern periodic law states that: Physical and chemical properties of elements are a periodic function of their atomic numbers.
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ICSE-THE PERIODIC TABLE -TOPIC 1 Modern Periodic Table and its Periodicity (2 Marks Questions )
  1. Consider the following elements: Be, Li, Na, Ca,K. Name the elements o...

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  2. Consider the following elements: Be, Li, Na, Ca,K. Name the elements o...

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  3. State modern periodic law of classification of elements.

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  4. How many periods and groups are there in the modern periodic table ?

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  5. What is the main characteristic of the last elements in the periods of...

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  6. What is meant by a group in the periodic table?

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  7. What is meant in the periodic table by a period ?

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  8. What is the number of elements in the 1^(st) period of the modern peri...

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  9. What is the number of elements in the 3^(rd) period of the modern peri...

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  10. Sodium and aluminium have atomic numbers 11 and 13, respectively. They...

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  11. Within a group where would you expect to find the element with (A) ...

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  12. Mention the part of group where the elements show: Big atomic size

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  13. The electronic configuration of element is ""35^17T is 2,8,7 Is it a...

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  14. Write electronic configuration of element underset(17)overset(35)""T....

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  15. Complete the table :

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  16. Complete the table :

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  17. Identify the following on the basis of given atomic numbers: 19,15,1...

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  18. Identify the following on the basis of given atomic numbers: 19,15,1...

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  19. Identify the following on the basis of given atomic numbers: 19,15,1...

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  20. Identify the following on the basis of given atomic numbers: 19,15,1...

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