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Which element has twice as many electron...

Which element has twice as many electrons in its second shell as in the first shell?

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Carbon, (C = 2, 4)
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ICSE-THE PERIODIC TABLE -TOPIC 2 Studying Individual Groups (3 Marks Questions)
  1. What is nature of compounds formed when group 17 elements react with m...

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  2. State the nature of compounds formed when group 17 elements combine wi...

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  3. Why group 17 elements are highly reactive ?

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  4. Comment on the reactivity of group 17 elements.

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  5. Comment on the colour of group 17 elements.

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  6. Comment on the physical state of group 17 elements.

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  7. The table given below shows the position of element U, V, X, Y and Z ...

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  8. The table given below shows the position of element U, V, X, Y and Z ...

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  9. Name the method used for extraction of alkali metals

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  10. Name first three alkali metals

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  11. Lithium compounds impart ........colour to the flame.

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  12. Find the name of elements based on the electronic configuration : 2,8,...

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  13. Find the name of elements based on the electronic configuration : 2,8,...

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  14. Find the name of elements based on the electronic configuration : 2,8,...

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  15. Write one main characteristic of p-block elements or representative e...

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  16. Write one main characteristic of d-block elements or transition eleme...

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  17. Write one main characteristic of f-block elements or inner transition...

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  18. Which element has twice as many electrons in its second shell as in th...

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  19. Which element has 3 shells in total with eight electrons in its valen...

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  20. Name an element that has two shells each one of which is completely fi...

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