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while moving across left to right in the periodic table the atomic size

while moving across left to right in the periodic table the atomic size

Grade:12th pass

3 Answers

Mahima Kanawat
1010 Points
5 years ago
Dear student 
While moving left to right in periodic table atomic size decreases but inert gases has maximum radii due to vanderwaal radius . 
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MAHIMA 
ASKIITIANS FORUM EXPERT 
REENU SIVADARSHINI.M
118 Points
5 years ago
Atomic Radius / SIZE . 
     ATOMIC RADIUS OF AN ATOM  IS DEFINED  AS THE DISTANCE  BETWEEN THE  CENTER  OF ITS NUCLEUS  AND THE  OUTERMOST SHELL CONTAINING  THE VALENCE ELECTRON .
 VARIATION IN PERIOD :
      ATOMIC RADIUS TEND TO  DECREASE  IN A PERIOD . 
 VARIATION  IN GROUP :
     ATOMIC RADIUS  OF ELEMENTS  INCREASE DOWN THE GROUP 
  [ BOTH ATOMIC RADIUS AND ATOMIC SIZE ARE SAME ]
N.R Pramath
31 Points
5 years ago
Atomic radii decreases when we move from left to right across periodic table that is when we move left to right in a period because the number of valence electrons increases and the attraction between electron and the nucleous increases hence the shell shrinks towards the nucleous.

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