subject
Biology, 28.07.2019 14:10 whitakers87

Ameteorite is determined to be 4.5 billion years old. it now has 78 atoms of lead-206. assuming no loss of daughter isotopes, how many atoms of uranium-238 did the meteorite have to begin with? the half-life of uranium-238 is 4.5 billion years. a) 156 b) 312 c) 78 d) 238

ansver
Answers: 1

Another question on Biology

question
Biology, 21.06.2019 17:00
Which of the following is true of photosynthesis? a)carbon dioxide is a reactant b)water is a product c)most reactions within this process are exothermic d)oxygen is a reactant
Answers: 2
question
Biology, 21.06.2019 19:30
Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers
Answers: 2
question
Biology, 21.06.2019 22:50
Parasitism could be considered a form of which of these types of relationships? -mutualism -commensalism -predator-prey -mimicry
Answers: 1
question
Biology, 22.06.2019 06:00
Can someone i have no idea of how to do this.
Answers: 2
You know the right answer?
Ameteorite is determined to be 4.5 billion years old. it now has 78 atoms of lead-206. assuming no l...
Questions
question
Mathematics, 20.01.2021 06:00
question
Mathematics, 20.01.2021 06:00
question
Mathematics, 20.01.2021 06:00
question
Biology, 20.01.2021 06:00
Questions on the website: 13722359