Mathematics, 18.09.2021 06:00 jansielys01013

A certain element has a half life of 4.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 30% of the original element remains; the other 70% decayed into lead. How old is the rock?Analysis of another rock shows that it contains 5% of its original element; the other 95% decayed into lead. How old is the rock?

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A certain element has a half life of 4.5 billion years. a. You find a rock containing a mixture of t...