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Why did Mendeleev leave a space for the unknown at the time element germanium in his periodic table?
Wiki User
∙ 11y ago
Because germanium was not known at the time when Mendeleev formulated his Periodic Table.
Wiki User
∙ 11y ago
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How did Mendeleev place germanium on the periodic table?
Mendeleev was able to predict the properties of the yet unknown element (Germanium) by the properties of the surrounding known elements on his periodic table of the elements. Predicting properties such as reactivity, density, atomic mass, etc., he knew where the undiscovered element would be placed.
When was copper added to the periodic table of elements?
Copper has been mined for about 5,000 years so it's exact origin is unknown. Since copper was a known element at the time that Dimitri Mendeleev first laid out his periodic table in 1869, it was included in that first periodic table. Other elements that were unknown at the time, like helium, were not included.
What scientist also proposed a periodic table about the same time as dimitri mendeleev?
Unknown to Mendeleev, Lothar Meyer was also working on a periodic table. Although his work was published in 1864, and was done independently of Mendeleev, few historians regard him as an equal co-creator of the periodic table.
Mendeleev's periodic table was use ful because it enabled scientists to predict properties of unknown?
elements
What did Dmitri Mendeleev arrange into a systematic chart?
the periodic table of elements In this table, elements having similar chemical properties are stacked up. The chemical properties are determined by how many free bonds an atom has open, which is related to how many electrons are in that element's outer shell.
How did Mendeleev place germanium on the periodic table?
Mendeleev was able to predict the properties of the yet unknown element (Germanium) by the properties of the surrounding known elements on his periodic table of the elements. Predicting properties such as reactivity, density, atomic mass, etc., he knew where the undiscovered element would be placed.
What describes Mendeleev and use of the term Eka aluminum?
mixture of aluminum and an unknown element later called Germanium.
What describes mendeleev use of the term eka-aluminum?
Gallium was named eka-aluminium by Mendeleev.
What is the modern name for eka-silicon?
Ekasilicon is germanium['eka' is Sanskrit language for: 'first' place down under Si)Germanium was isolated in 1886, and provided the best confirmed prediction of Mendeleev's periodic table, which was built up before the discovery of Ge.(Professor Dmitri Mendeleev published the first Periodic Table of the Atomic Elements in 1869).When he proposed his periodic table, he noted some gaps in the table, and predicted that as-of-yet unknown elements existed with properties appropriate to fill those gaps.
What are the unknown elements of Mendeleev's Lab of 1869?
=unknown 1: silicon/unknown 2: neon/unknown 3: rubidium/unknown 4: krypton/unknown 5: gold/unknown 6: strontium/unknown 7: magnesium/unknown 8:cesium/unknown 9: thallium==are those the answers?=
When was copper added to the periodic table of elements?
Copper has been mined for about 5,000 years so it's exact origin is unknown. Since copper was a known element at the time that Dimitri Mendeleev first laid out his periodic table in 1869, it was included in that first periodic table. Other elements that were unknown at the time, like helium, were not included.
What scientists also proposed a periodic table about the same time as Mendeleev?
Unknown to Mendeleev, Lothar Meyer was also working on a Periodic Table. Although his work was published in 1864, and was done independently of Mendeleev, few historians regard him as an equal co-creator of the periodic table.
What scientist also proposed a periodic table about the same time as dimitri mendeleev?
Unknown to Mendeleev, Lothar Meyer was also working on a periodic table. Although his work was published in 1864, and was done independently of Mendeleev, few historians regard him as an equal co-creator of the periodic table.
Which describes Mendeleev's use of the term aluminum?
A mixture of aluminum and an unknown element.
Mendeleev's periodic table was use ful because it enabled scientists to predict properties of unknown?
elements
Why did Mendeleev first think that argon was not an element?
In 1871 noble gases wee unknown.
Which describes mendeleevs use of the term ekaaluminum?
A mixture of aluminum and an unknown element.
