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All the elements on the earth (excepting of course man made elements) are considered natural chemical elements.
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∙ 13y ago
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What are the rare earth elements?
The rare earth elements are 17 proper elements, consisting of scandium, yttrium and the fifteen lanthanoids.All of the elements in the lanthanide and actinide series are considered "rare earth" elements
How many elements are there on earth?
Now (2013) are considered as natural chemical elements 97 elements (including berkelium).
What does this mean- Most of the rare earth elements are considered to be synthetic?
All the rare earth elements are natural chemical elements (including prometium - element obtained also artificialy).
Why are technetum promethium and neptunium considered naturally occurring elements even though they are not found on earth?
These elements exist also naturally - in infinitesimal amounts - in the Earth crust.But practically are artificial elements.
How many elements are known to exist on earth?
Today are known 118 chemical elements; 98 are considered as natural elements (but some have also and an artificial origin).
Is earth a element?
Earth is defiantly not an element. Elements are in the smallest known form. Nothing like the Earth. Yes. Earth is one of the five basic elements of matter... The other four are Air, Water, Light ans Space. This theory is obsolete and not considered in modern day science.
Elements that occur somewhere on earth are what?
The planet Earth and everything on it, including us, is composed of the chemical elements. Not only are elements found on Earth, but everything found on Earth is made of elements.
Are alloys considered rocks?
NoAlloys are mixtures of metallic elements or metals with other elements (steel is an alloy that can be a mixture of iron and carbon).Rocks are minerals, these are components of the earth and need not contain any metallic elements at all.
What are the 5 elements of earth?
the five elements of the earth are: Fire Water Wind Earth Gases
What are Metals such as iron and nickel and cobalt?
All those metals are considered to be Earth Elements, or substances that can be found on Earth and are pure since they can not be broken down into any other substances.
Earth water air fire?
These things were considered by the Ancient Greeks to be the elements which made up (in different proportions) all matter.
What is gold mostly used for?
Mostly it is used to back national currencies as it is considered one of the rarest and most valuble elements on Earth.
