How many 87rb atoms are in a moon rock sample that has a
Rubidium-87 decays by beta decay with a half-life of 4.9 × 1010 yr. How many 87Rb atoms are in a moon rock sample that has a rubidium decay rate of 3500 disintegrations per hour?
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learning outcomescritically analyse project risks and develop a range of strategies to effectively manage those risks
show the calculation of the mole fraction and partial pressurenbspof each gas in a mixture which consists of 250 moles
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rubidium-87 decays by beta decay with a half-life of 49 times 1010 yr how many 87rb atoms are in a moon rock sample
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