Question

Why lithium is largest atomic radius in second period?

Answer 1

HERE'S THE ANSWER:-

THE RADIUS OF THE ELEMENTS DEPENDS UPON SHEILDING EFFECTS:-

IN THE SECOND PERIOD LITHIUM IS GOING TO BE FIRST ELEMENT SO THE ELECTRONS ARE PRETTY WELL SEPARATED FROM EACH OTHER..

AS YOU GO THROUGH THE PERIOD PROTONS NUMBER INCREASES WHICH INCREASES CHARGE ON NUCLEUS..

SO HENCE THE MORE YOU'LL GO FROM RIGHT TO LEFT RADIUS DECREASES BECAUSE OF INCREASING NUCLEUS NUMBER ..

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