An ancient rock is found to contain ⁴⁰Ar gas,indicating that of the ⁴⁰K in the rock has decayed since the rock solidified.Any argon would have boiled out of liquid rock.The half-life of ⁴⁰K is 1.25 billion years.How long ago did the rock solidify? A) 2.6 billion years B) 0.50 billion years C) 1.8 billion years D) 0.30 billion years

Question

Quizplus · Accepted Answer

The Answer of An ancient rock is found to contain ⁴⁰Ar gas,indicating that of the ⁴⁰K in the rock has decayed since the rock solidified.Any argon would have boiled out of liquid rock.The half-life of ⁴⁰K is 1.25 billion years.How long ago did the rock solidify? A) 2.6 billion years B) 0.50 billion years C) 1.8 billion years D) 0.30 billion years

An Ancient Rock Is Found to Contain 40Ar Gas,indicating That

An Ancient Rock Is Found to Contain ⁴⁰Ar Gas,indicating That