rileypaige rileypaige
  • 10-04-2017
  • Chemistry
contestada

a rock from the moon contains 12.5 percent of the potassium-40 it began with. how old is the rock

Respuesta :

arahim894
arahim894 arahim894
  • 10-04-2017
1.25 billion years ago,2.5 billion years ago, 3.75 years ago,and 5 billion years ago.
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anayaaguiar009
anayaaguiar009 anayaaguiar009
  • 01-07-2021

Answer:

3.9 billion years old, this is late but hope it helps someone!

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