The least abundant element in the earth's crust
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The Most Abundant Elements In The Earth's Crust
Oxygen - 46.6% Oxygen is the most abundant element in the Earth's crust. ...
Silicon - 27.7% Silicon is the second most common element present in the crust with an abundance of 276,900 ppm. ...
Aluminum - 8.1% At 80,700 ppm, aluminum is the third most abundant element in Earth's crust. ...
Iron - 5%
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The least abundant element is Plutonium
The amount of Plutonium is so miniscule as they are present only inside Uranium (Pu)
The second and third most least abundant is Astatine and Francium respectively as they are obtained by the decay of Thorium and Uranium
For instance, at all part of earth's crust you can find only 25g of astatine and 30g of Uranium!!
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