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Title: Three naturally occurring isotopes exist for the hypothetical element athenium. Post by: xlr300 on Dec 11, 2014 Three naturally occurring isotopes exist for the hypothetical element athenium. 2.50% of athenium atoms have a relative mass of 26.0 amu, 75.0% of athenium atoms have a relative mass of 27.0 amu, and 22.5% of athenium atoms have a relative mass of 28.0 amu. What is the atomic mass of athenium?
A) 26.8 amu B) 27.0 amu C) 28.0 amu D) 27.2 amu Title: Re: Three naturally occurring isotopes exist for the hypothetical element athenium. Post by: dustyparticle on Dec 18, 2014 Content hidden
Title: Re: Three naturally occurring isotopes exist for the hypothetical element athenium. Post by: xlr300 on Dec 19, 2014 Thank you for helping me out all semester, your answer was right! Bye for now
Title: Re: Three naturally occurring isotopes exist for the hypothetical element athenium. Post by: dustyparticle on Dec 19, 2014 Welcome :-]
Title: Re: Three naturally occurring isotopes exist for the hypothetical element athenium. Post by: sboldin1 on May 14, 2020 Thanks
Title: Re: Three naturally occurring isotopes exist for the hypothetical element athenium. Post by: Lilea Astone on Jun 18, 2020 Thank you
Title: Re: Three naturally occurring isotopes exist for the hypothetical element athenium. Post by: Kelly Lopez on Feb 28, 2021 WTF IS THIS sh@# FRAUD
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