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CBSE Class 11-science Answered

solve this cbse problem
Asked by | 19 Jul, 2008, 10:56: PM
answered-by-expert Expert Answer

A=81

suppose the no of protons=p

so, no of neutrons = p + (p x 31.7/100)

                                  =1.317p

p+n=81

p+1.317p=81

p= 81/2.317=34.96=35

Answered by | 20 Jul, 2008, 03:42: PM
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