Strotium has 4 naturally occuring isotopes. Theirnatural abundances and atomic m

Question

Strotium has 4 naturally occuring isotopes. Theirnatural abundances and atomic masses are:                                                      ISOTOPE                     MASS                NATURAL ABUNDANCE Strotium            84                            83.9134                             .50 Strotium             86                            85.9094                            9.90 Strotium              87                            86.9089                             7.0 Strotium             88                            87.9056                            82.60 Show that the atomic weight of Strotium is 87.62? Strotium has 4 naturally occuring isotopes. Theirnatural abundances and atomic masses are:                                                      ISOTOPE                     MASS                NATURAL ABUNDANCE Strotium            84                            83.9134                             .50 Strotium             86                            85.9094                            9.90 Strotium              87                            86.9089                             7.0 Strotium             88                            87.9056                            82.60 Show that the atomic weight of Strotium is 87.62?

Explanation / Answer

The simplest way to do this question is to put weight on mass basedon natural abundance: So, Atomic weight of strontium = 83.9134 x 0.005 + 85.9094 x 0.099+ 86.9089 x 0.07 + 87.9056 x 0.826 = 87.62 Hope this helps!

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