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How valency of elements changes : Down t...

How valency of elements changes : Down the group from top the bottom

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### Step-by-Step Solution: 1. **Understanding Valency**: - Valency refers to the ability of an element to combine with other elements, which is determined by the number of electrons in the outermost shell (valence electrons). 2. **Periodic Table Groups**: - Elements are arranged in groups (columns) in the periodic table. Elements in the same group typically have similar chemical properties and the same number of valence electrons. ...
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What happens to the atomic size of elements on moving from top to bottom of a group.

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ICSE-THE PERIODIC TABLE -TOPIC 1 Modern Periodic Table and its Periodicity (5 Marks Questions )
  1. Mention the part of group where the elements show: Big atomic size

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  2. How valency of elements changes : Along the period from left to right

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  3. How valency of elements changes : Down the group from top the bottom

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  4. Name the metalloid present in second period

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  5. For elements ""19^39X Write electronic configuration

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  6. For elements ""19^39X What is the group number

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  7. For elements ""19^39X What is the period number

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  8. For elements ""19^39X Number of valence electrons

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  9. For elements ""19^39X Valency of X

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  10. An elements P has atomic no. 13. Write its electronic configuration

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  11. An elements P has atomic no. 13. State the group to which it belong...

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  12. An elements P has atomic no. 13. Elements P is metal or non-metal ?

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  13. An elements P has atomic no. 13. Write the formula of its oxide

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  14. Name the scientist who proposed modern periodic law

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  15. Name first element of period 7

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  16. As we move down the group, the atomic size increases or decreases ?

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  17. What is the common feature of the electronic configurations of the ele...

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  18. Properties of eka silicon resembles with which element ?

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  19. Beryllium exhibits diagonal relationship with .................. (magn...

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  20. Elements W, X, Y, Z in the periodic table are shown below: State...

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