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Mendeleev predicted that gallium belonged to the R2O3. Gallium was not discovered until 1874. The noble gases weren't discovered until 1894 through 1899.
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∙ 9y ago
Wiki User
∙ 8y agoThe original predicted elements were scandium, gallium, technetium and germanium; after this the list was extended.
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∙ 10y agoI believe it was Germanium.
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∙ 11y agoGeranium, Gallium, and Scandium.
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∙ 8y agoThis metalloid is germanium.
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∙ 10y agosulfur
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∙ 15y agoMendelevium
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∙ 11y agoBarium
Wiki User
∙ 10y agoGermanium
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What is ekasilicons modern name?
Ekasilicon (Mendeleev's name for the element below Silicon, 1869) is named germanium since it was discovered (1886).Eka (from Sanskrit) means 'first' for first element downwards.
What element was discovered in space before earth?
This element is helium.
Element discovered on the sun before earth?
Helium
How Mendeleev used the data available to him to create his periodic table?
Mendeleev placed his elements in order of increasing atomic mass. He placed elements with similar chemical properties in the same groups or families. He realized that there were some gaps in the table where an undiscovered element should go and made predictions about those elements before they were found.
What is cerium family name?
Cerium was discovered by Wilhelm von Hisinger, Jons Jacob Berzelius, Martin Klaproth at 1803. It was named after the asteroid Ceres which was discovered in 1801, two years before the element.
What is ekasilicons modern name?
Ekasilicon (Mendeleev's name for the element below Silicon, 1869) is named germanium since it was discovered (1886).Eka (from Sanskrit) means 'first' for first element downwards.
Who discovered the periodic table of element?
Dmitri Mendeleev, although he did it differently we than it is right now. He pridected elements, and now, they've been discovered. Some people discovered elements Mendeleev didn't predict. Most of them were radioactive, like rutherfordium. (Of course, that element was synthetic. There are only 92 natural elements.) Mendeleev used different symbols than we do now, e.g. yttrium was Yt. The elements Mendeleev predicted were gallium, germanium, and scandium.
How was element germanium discovered?
In 1886 a German chemist named, Clemens A. Winkler discovered germanium. He discovered the first trace of germanium in the mineral argyrodite, while isolating it. (But germanium rarely makes distinct minerals.) He purified it to find the new element. Before this in 1871 a chemist named, Mendeleev predicted there would be a new element, that would have properties similar to the ones in silicon. His predictions were proved to be true.
Which element was discovered in space before it was discovered on earth?
helium
What element was discovered in space before earth?
This element is helium.
Which element was first discovered in space before it was discovered on earth?
helium
How was germanium discovered?
In 1886 a German chemist named, Clemens A. Winkler discovered germanium. He discovered the first trace of germanium in the mineral argyrodite, while isolating it. (But germanium rarely makes distinct minerals.) He purified it to find the new element. Before this in 1871 a chemist named, Mendeleev predicted there would be a new element, that would have properties similar to the ones in silicon. His predictions were proved to be true.
Element discovered on the sun before earth?
Helium
Who discovered the element iron-?
The use of iron dates back before recorded history. It is unknown who discovered iron.This answer is unknown due to the fact that the element was discovered before reliable records were created.It was been discoved for ancient times.
What element was discovered first in modern times?
Oxygen which was discovered by Lavoisier. It was before known as flojistcated air.
What element was found after being on the sun for 27 years?
Helium. It was discovered on the Sun many years before it was discovered on Earth.
Why is ununoctium on some periodic tables but not others?
Ununoctium was discovered (prepared) in 2006; old Mendeleev tables (printed before 2006) don't contain ununoctium.
