Chemistry, asked by meganmoose1115ow4q2z, 1 year ago

An element, X, has the following isotopic composition: X-200, 90%; X-199, 8.0%, and X-202, 2.0%. What is the average atomic mass?

Answers

Answered by siddhartharao77
20
Average atomic mass = 200 * 90  + 199 * 8 + 202 * 2/100
 
                                     =  199.96

                                     = ~ 200


Hope this helps!
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