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CBSE Class 10 Answered

how does the atomic size vary as you go down a group?
Asked by shettyshrinidhi271 | 07 Jan, 2021, 17:04: PM
answered-by-expert Expert Answer
Atomic size increases as we go down a group because each time one new shell is added and electrons in the outermost shell move away from the nucleus.
Answered by Ramandeep | 11 Jan, 2021, 12:19: PM
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CBSE 10 - Chemistry
what is elements
Asked by dhumalchhaya13 | 26 May, 2022, 23:05: PM
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CBSE 10 - Chemistry
what is periods
Asked by kanchanbalpande82 | 12 Apr, 2022, 11:01: AM
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CBSE 10 - Chemistry
what is periods
Asked by kanchanbalpande82 | 12 Apr, 2022, 11:01: AM
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CBSE 10 - Chemistry
Modern period table  
Asked by waghmaresheetal78 | 27 Dec, 2021, 17:02: PM
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CBSE 10 - Chemistry
1. Electronic configuration of an element ‘x’ is 2.8.1 and for ‘Y’ 2.8.7 then mention the bond existing between 2 elements. a) Covalent bond b) Ionic bond c) Hydrogen bond d) Metallic bond 2. Identify the element in a 2nd period and 14th group with valency 4. a) Carbon –C b) Silicon – Si c) Boron – B d) Fluorine – F 3. Modern periodic law state that “the properties of elements are the periodic function of their ___________. a) Atomic number b) Atomic mass c) Valiancy d) Atomic radius.   Name the group of hydrogen.   9. In a Modern periodic table how the ionization energy, metallic nature and atomic radius vary? 10. 6 C 12 , 20Ca40 , 21SC45 Write the Electronic configuration of given elements and mention the group period and block    
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Asked by ksheera36 | 03 Jun, 2021, 20:35: PM
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CBSE 10 - Chemistry
How tp learn the symbols element
Asked by vungtsaniyanthan | 16 May, 2021, 18:32: PM
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CBSE 10 - Chemistry
drawbacks of mendeleev and modern periodic table with example
Asked by sinhagopalakumara | 01 May, 2021, 20:16: PM
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CBSE 10 - Chemistry
Que:-How it can be proved that the basic structure of the Modern Periodic Table is based on the electronic configuration of atoms of different elements?
Asked by advssdrall | 26 Mar, 2021, 07:43: AM
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CBSE 10 - Chemistry
how does the atomic size vary as you go down a group?
Asked by shettyshrinidhi271 | 07 Jan, 2021, 17:04: PM
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CBSE 10 - Chemistry
Just as the way we locate a point on graph as (x, y), can we locate an element as (group number, period)?
Asked by adipadmakarri | 05 Dec, 2020, 18:41: PM
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