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What element in 1800 had been thought to be identical to the element directly above it in the periodic table?
In 1800, the element sulfur was thought to be identical to the element selenium, which is directly above it in the Periodic Table. This was due to their similar chemical properties and physical appearances. It wasn't until the 19th century that their distinct differences were recognized through further scientific research and experimentation.
What else can I help you with?
Is ununoctium a liquid?
It was thought to be a gas but may be a solid under normal conditions
What defines the atomic number of each element?
The atomic number of an element is determined by the number of protons in the nucleus of an atom. It is a unique characteristic of each element and defines its place on the periodic table. The atomic number also corresponds to the number of electrons in a neutral atom of that element.
What is the last halogen?
It is the element first created in 2009 Ununseptium, (Uus), with the atomic number of 117 and a standard atomic weight thought to be 294. The name, which simply refers to its atomic number, is a temporary one as at the time of posting this reply (end 2015)..
What is the total number of electrons found in the valence shell of an alkaline element in the ground state?
An alkaline element in the ground state typically has 1 or 2 electrons in its valence shell. This is because alkaline elements belong to group 1 or 2 of the periodic table, which corresponds to 1 or 2 valence electrons.
What are common compounds found in Meitnerium?
Meitnerium is a synthetic element, so it does not naturally occur in compounds in the environment. However, it could potentially form compounds with elements like oxygen, fluorine, or chlorine due to its position in the periodic table. These compounds would be highly unstable and only exist in a laboratory setting.
What Element w had been thought to be identical to the element directly above it in the periodic table?
tantalum atomic number 73
Is magenesium a element?
yes, it is an element. You can check it in the periodic table.
What is periodic table made out of?
The periodic table of the elements is not a physical table, it is a concept. It is made out of thought.
In the early 1800s this element was thought to be the element above it?
Tantalum.
Who thought about the periodic table before Dmitri mendleev?
Lothar Meyer thought about the periodic table before Dmitri mendleev. However, his work was not published until after the work of Mendleev.
What element was produced first when the universe was formed?
Asssuming the Universe began with the Big Bang, it is thought that the first element formed, by colliding quarks and other sub-atomic particles, was hydrogen - the lightest of all the elements.
How belief in the four element concept delay the advancement of scientific thought in chemistry?
how belief in the four element concept delayed the advancement of scientific thought in chemistry
Is ununoctium a liquid?
It was thought to be a gas but may be a solid under normal conditions
What is a defining element of the Renaissance?
the return to "classical" thought
However no two sperm are ever thought to be genetically identical. What factor explains this?
crossing over
How did plutonium get its name?
suggested that element 94, being the next element in the series, be named for what was then considered the next planet, Pluto.[4][note 2] Seaborg originally considered the name "plutium", but later thought that it did not sound as good as "plutonium."[33] He chose the letters "Pu" as a joke, which passed without notice into the periodic table.[note 3] Alternate names considered by Seaborg and others were "ultimium" or "extremium" because of the now-discredited belief that they had found the last possible element on the periodic table.[34] suggested that element 94, being the next element in the series, be named for what was then considered the next planet, Pluto.[4][note 2] Seaborg originally considered the name "plutium", but later thought that it did not sound as good as "plutonium."[33] He chose the letters "Pu" as a joke, which passed without notice into the periodic table.[note 3] Alternate names considered by Seaborg and others were "ultimium" or "extremium" because of the now-discredited belief that they had found the last possible element on the periodic table.[34]
What defines the atomic number of each element?
The atomic number of an element is determined by the number of protons in the nucleus of an atom. It is a unique characteristic of each element and defines its place on the periodic table. The atomic number also corresponds to the number of electrons in a neutral atom of that element.
