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What does this mean- Most of the rare earth elements are considered to be synthetic?
Wiki User
∙ 13y ago
All the rare earth elements are natural chemical elements (including prometium - element obtained also artificialy).
Wiki User
∙ 13y ago
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Are actinides and lanthanide elements transition metals?
no they are not. actinide is not part of the transition metals.
Are most of the alkali metals synthetic elements?
yes
What is the name of the series which contains most of the synthetic and radioactive elements?
All of the actinides are radioactive, and almost all are synthetic.
Where are most synthetic elements found on periodic table?
These elements are found after uranium.
To make most synthetic elements scientist use machines called?
particle accelerator
Are actinides and lanthanide elements transition metals?
no they are not. actinide is not part of the transition metals.
Are most of the alkali metals synthetic elements?
yes
What machine makes most synthetic elements?
Synthetic elements are obtained: - in nuclear reactors - as a result (in debris) of nuclear weapons explosions - with the aid of particle accelerators
How do most elements on earth occur?
Most elements on the Earth occur as oxides or silicates.
What is the name of the series which contains most of the synthetic and radioactive elements?
All of the actinides are radioactive, and almost all are synthetic.
What is a name of a metal found on earth?
Most all metals up to Uranium are found in some form on Earth naturally. After that, the elements are purely synthetic and generally have half-lives of miliseconds or less.
Where are most synthetic elements found on periodic table?
These elements are found after uranium.
To make most synthetic elements scientist use machines called?
particle accelerator
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.
The most abundant elements in earth's crust are?
The most common element in the earth's crust is oxygen.
What are the two most abundant elements by mass found in Earth's crust?
The 8 most common elements in Earth's crust (by mass): 46.6% Oxygen (O) 27.7% Silicon (Si) 8.1% Aluminum (Al) 5.0% Iron (Fe) 3.6% Calcium (Ca) 2.8% Sodium (Na) 2.6% Potassium (K) 2.1% Magnesium (Mg) Therefore, the most common metallic elements in the Earth's crust would be Silicon and aluminum. (Note that aluminum is a metal, but silicon is considered to be a metaliod -- not to be confused with Silicone which is a synthetic polymer.)
What are the most abundant elements on earth?
Hydorgen
