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What is the percent abundance for thallium 205

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-Tl has 2 isotopes and an average atomic mass of 204.383 The 2 isotopes for Tl are Thallium 203 and Thallium 205. What is the percent abundance for Thallium 205.

-Ne has 2 isotopes and an average atomic mass of 20.179 The 2 isotopes for Ne are Neon -20 and Neon -22 . What is the percent abundance for Neon -22.

-Ce has 2 isotopes and an average atomic mass of 140.116. The 2 isotopes for Ce are Cerium 136 and Cerium 142. What is the percent abundance for Cerium 142.

-Tl has 2 isotopes and an average atomic mass of 204.383 The 2 isotopes for Tl are Thallium 203 and Thallium 205. What is the percent abundance for Thallium 203.

Reference no: EM132647445

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