Tell us about the structure of the Earth. What chemical elements are included in each of the constituent parts of the globe?

Planet Earth has a complex structure:
– the solid inner core of the planet consists of two chemical elements – iron and nickel;
– outer liquid core – iron;
– the mantle consists of substances formed mainly by three chemical elements – aluminum, silicon and oxygen;
– the earth’s crust consists of oxygen (46%), silicon (28%), aluminum (8%), iron (5%), calcium (4%), sodium (3%), potassium (2%), magnesium (2 %) and other elements (2%).

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