the mass of cobalt-60 in

  1. Which characteristic of the element Cobalt (Co) is most closely related to its chemical reactivity?A. Cobalt's two valence
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  2. Naturally occurring cobalt consists of only one isotope Co59 whose relative atomic mass is 58.9332. A synthetic radioactive
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    2. Candace asked by Candace
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  3. Naturally occurring cobalt consists of only one isotope, 59Co, whose relative atomic mass is 58.9332. A synthetic radioactive
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    2. Vanessa asked by Vanessa
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  4. A sample of pure cobalt-60 has an activity of 8 µCi.(t1/2 cobalt-60 = 5.26 a) (a) How many atoms of cobalt-60 are present in
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    2. Trixie asked by Trixie
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  5. I got 11e-29 for the first answer which I believe is correct. I just don't understand how to do part b.PROBLEM: Cobalt has a
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    2. Sky asked by Sky
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  6. the mass of cobalt-60 in a sample is found to have decreased from 0.800g to 0.200g in a period of 10.5 years. from this info
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    2. shaleena asked by shaleena
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  7. the mass of cobalt-60 in a sample is found to have decreased from 0.800g to 0.200g in a period of 10.5 years. from this info
    1. answers icon 1 answer
    2. shaleena asked by shaleena
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  8. Which of the following are negative consequences of cobalt mining in the Democratic Republic of Congo? Select the two correct
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    2. L asked by L
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  9. Which of the following are negative consequences of cobalt mining in the Democratic Republic of CongoSelect 2 answers Thousands
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  10. Naturally occurring cobalt consists of only one isotope, cobalt59, whose relative atomic mass is 58.9332. A synthetic
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    2. Aidan asked by Aidan
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