
Quimica
Presentation
•
Chemistry
•
1st - 3rd Grade
•
Hard
Celia Graiño
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8 Slides • 0 Questions
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Abundancia de los Elementos en la Naturaleza
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La distribucion de los elementos en la naturaleza es mun desigual. Todo dependera de la escala en la que se analice esta distribucion: las galaxias, la Tierra, la parte superficial de la Tierra (la corteza terrestre, mares y atmosfera), el cuerpo humano....
Casi toda la materia del universo se encuentra en las estrellas
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Si se analiza la distribucion de los elementos en la Tierra, el elemento mas abundante es el hierro, seguido por el oxigeno, silicio y magnesio.
SUMAN ENTRE ELLOS MAS DEL 90%
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Si se observa la abundancia de los elementos en la superficie terrestre, contando la corteza, los mares y la atmosfera, EL OXIGENO EQUIVALE AL 49 % DE LOS ELEMENTOS
¿Qué piensan de la caída porcentual del hierro y el importante aumento del oxigeno?
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En el cuerpo humano es aun mas importante la proporcion de oxigeno
O2
O2
O2
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Ahora... charlemos de esto!!!!!
Abundancia de los Elementos en la Naturaleza
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