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What is meant by a group in the periodic...

What is meant by a group in the periodic table?

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Vertical columns in the periodic table are called groups. The modern periodic table has 18 vertical columns, called groups. Each vertical column accommodates elements with the same number of electrons in the outermost shell.
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ICSE-THE PERIODIC TABLE -TOPIC 1 Modern Periodic Table and its Periodicity (2 Marks Questions )
  1. How many periods and groups are there in the modern periodic table ?

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

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

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

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

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

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

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

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

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

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

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  12. Complete the table :

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  13. Complete the table :

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

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

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

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

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  18. Write the hydrides of Lithium and Beryllium

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  19. What is the common name of the groups given below. A. Group 2 B. G...

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  20. Arrange the following elements Li, B, O, Be, N,F in the order of decre...

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