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Grade 11Modern Physics

What is the radius of iodine atom (At. no. 53 mass no. 126)

(a) 2.5 × 10-11 m

(b) 2.5 × 10-9m

(c) 7 × 10-9m

(d) 7 × 10-6m

Profile image of Simran Bhatia
12 Years agoGrade 11
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1 Answer

Profile image of Amit Saxena
12 Years ago

(a)

53 electrons in iodine atom are distributed as 2,8,18,18,7

.''. n = 5