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A crystal of zircon separated

A crystal of zircon separated from an igneous rock, was analyzed, and found to contain 7930 atoms of 207Pb, and 12070 atoms of
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2. asked by Tamara
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In the laboratory small zircon crystals were separated from granite (K).Isotopic analysis of these zircon crystals gives a
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2. asked by tanya
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Which allowed scientists to determine that Earth was at least 4.3 billion years old?(1 point)Responses magnetic field
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2. asked by Connexus Kid
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Which allowed scientists to determine that Earth was at least 4.3 billion years old?(1 point) Responses chemical reactivity of
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2. asked by p
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Which allowed scientists to determine that Earth was at least 4.3 billion years old?(1 point)Responses chemical reactivity of
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Which allowed scientists to determine that Earth was at least 4.3 billion years old?(1 point)Responses magnetic field
1. 1 answer
2. 106 views
Which allowed scientists to determine that Earth was at least 4.3 billion years old?(1 point)Responses chemical reactivity of
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2. 23 views
Zircon is sometimes used to make fake diamonds. What is its index of refraction if the speed of light in zircon is1.6 x 10^8
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2. asked by abster
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What type of solid would you expect diamond (C) to be?Question 10 options: Ionic crystal Metallic crystal Molecular crystal
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The mass of an apple on planet Zircon is 6.6 kg and the weight is 5.4 N. What is the acceleration due to gravity on planet
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2. asked by Rya
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