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Explain the variation of atomic radius d...

Explain the variation of atomic radius down a group.

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Down a group , atomic radius increases as the atomic number increases , Ex : Li to Na.
Because an extra shell is created to accommodate electrons . Thus the atomic radius increase.
Similarly from Na to K, another shell is created.
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SUBHASH PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -TWO marks questions and answers
  1. Name a species that will be isoelectronic with each of the following a...

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  2. Name a species that will be isoelectronic with each of the following a...

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  3. Arrange the following ions in the increasing order of their size: Be^(...

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  4. Explain law of octaves.

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  5. What ar the limitations of law of octaves.

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  6. Among B, Al , C and Si Which has the highest first ionization enth...

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  7. Among B, Al , C and Si which has the largest atomic radius.

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  8. Arrange the following elements in increasing order of non - metallic c...

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  9. Explain the variation of atomic radius down a group.

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  10. Explain the variation of atomic radius across a period.

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  11. Explain the variation of ionic radius down a group and across period.

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  12. Explain is isoelectronic ions with an example.

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  13. Among O,O^(-) ,O^(2-) select a species which has smallest radius and g...

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  14. Why has smallest Sr^(2+) radius than and Kr ?

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  15. Define electron negativity . How dose it differ electron affinity ?

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  16. Name a species that will be is electronic with each of the following a...

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  17. Name a species that will be is electronic with each of the following a...

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  18. Name a species that will be is electronic with each of the following a...

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  19. Name a species that will be is electronic with each of the following a...

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  20. Give examples of three cation and three anions which are iso electroni...

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