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Promethium, Pm, atomic number 61
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Why there are 14 element in lanthanide series?
because there are only 14 electrons in the f orbital
What first synthetic element to be made by colliding nuclei in a particle accelerator?
Technetium is the only element below uranium that does not exist on Earth. It is a synthetic (man-made) element produced in a particle accelerator
What are synethic elements?
See the periodic table - elements with the atomic number beyond 94.
Why where the lanthanide and actinide elements droped out of order on the periodic tabel?
The vertical columns of the periodic table are arranged to contain elements that have similar chemical and physical properties.The two rows at the bottom (called the Lanthanide and Actinide series) are elements that would all fit into group IIIB, in periods (horizontal rows) 6 and 7. since there is only one spot on the chart for all the elements in each series, they are listed separately at the bottom of the table.
All synthetic elements have 92 protons?
Only uranium has 92 protons; each chemical element (natural or artificial) has a different number of protons.
Why there are 14 element in lanthanide series?
because there are only 14 electrons in the f orbital
What synthetic element has the fewest protons?
In chemistry, a synthetic element is a chemical element that does not occur naturally on Earth, and can only be created artificially. So far 20 synthetic elements have been synthesized (those with atomic numbers 99-118). so the answer is the element Ensteinium with atomic number 99.
Is plutonium a natural or synthetic element?
Plutonium is an artificial element; natural plutonium exist only in extremely traces.
What first synthetic element to be made by colliding nuclei in a particle accelerator?
Technetium is the only element below uranium that does not exist on Earth. It is a synthetic (man-made) element produced in a particle accelerator
Which element is Atomic number- 112?
The element with an atomic number of 112 is called Copernicium. It is a synthetic, radioactive element that can only occur in a laboratory.
Is technetium synthetic?
Technetium is an artificial chemical element; only ultratraces exist in nature in uranium ores.
What is the position of Americium on the perdiodic table?
Americium is element 95, and its symbol is Am. It is the 7th element in the Actinide series, and it's right after plutonium. It is a radioactive metallic element. It may be the only synthetic element that exists in the household. A tiny amount is used in some smoke detectors. A link is provided to the Wikipedia post of the periodic table. It is an interactive chart, and each tile (which represents an element) is a hyperlink to the Wikipedia article on that element.
Is aluminium natural or syntheti?
Aluminium is an element, it is not synthetic.
Is promethium synthetic?
Promethium is a natural chemical element. But because exist in nature only in ultratraces it is artificially prepared.
What elements is radioactive and synthetic barrium cesium currium and xenon?
Curium {Note correct spelling} is only element in the list given that is radioactive and synthetic.^ not correct answer and not even spelled right the correct answer is "lawrencium"The rare earth elements are located at the bottom of the periodic table and are comprised of the lanthanoid series and the actinoid series.The actinoid series is the second row of rare earth elements. All of these elements are radioactive, and all of these elements (except actinium, thorium, protactinium, and uranium) are synthetic.
What are synethic elements?
See the periodic table - elements with the atomic number beyond 94.
Why where the lanthanide and actinide elements droped out of order on the periodic tabel?
The vertical columns of the periodic table are arranged to contain elements that have similar chemical and physical properties.The two rows at the bottom (called the Lanthanide and Actinide series) are elements that would all fit into group IIIB, in periods (horizontal rows) 6 and 7. since there is only one spot on the chart for all the elements in each series, they are listed separately at the bottom of the table.
