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Mendeleev's prediction that there were elements missing from the Periodic Table was confirmed when gallium was discovered in 1875 and germanium in 1886, fulfilling the gaps Mendeleev had left in his periodic table.
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What prediction did Mendeleev make that came true less then 20 yrs later?
he predicted the places where he knew elements should be but he couldn't visibly see. Back when Mendeleev was alive, what you could not see you could not measure. This explains why he couldn't see the noble gasses.
Did Mendeleev know about protons neutrons and electrons?
No, Mendeleev did not know about protons, neutrons, and electrons. He is best known for creating the periodic table of elements based on the properties of the elements without knowledge of the atomic structure. The discovery of protons, neutrons, and electrons came later with the development of atomic theory.
How did mendeleev feel about Russian science education when he came back from Germany?
When Mendeleev returned to Russia from Germany, he was dissatisfied with the state of science education in Russia. He believed it needed improvement and that the education system should focus more on practical applications of science rather than just theory. Mendeleev advocated for reforms and changes in the education system to better foster scientific innovation in Russia.
Who were Dmitri Mendeleev's parents?
Dmitri Mendeleev's parents were Ivan Pavlovich Mendeleev and Maria Dmitrievna Mendeleeva. Ivan Mendeleev was a teacher and Maria Mendeleeva came from a wealthy family. Mendeleev was the youngest of their 17 children.
Scientist that first arranged and classfied elements into a chart?
Dmitri Mendeleev is the scientist who is credited with first arranging and classifying elements into a chart that laid the foundation for the modern periodic table. Mendeleev's periodic table arranged elements by their atomic weight and predicted the properties of unknown elements that were yet to be discovered.
What prediction did Mendeleev make that came true less then 20 yrs later?
he predicted the places where he knew elements should be but he couldn't visibly see. Back when Mendeleev was alive, what you could not see you could not measure. This explains why he couldn't see the noble gasses.
What is medeleev's prediction?
It's probably Mendeleev you're after. He came up with the first version of a Periodic Table of the elements, and used this to predict the properties of elements that hadn't been discovered at that time.
Who introduced zero group in periodic table?
mendeleev and others proposed the zero group
Who came up with the idea of the periodic table?
Dmitri Mendeleev
What country was Dmitri Mendeleev from?
Dmitri came from Tobolsk, Russia
Who came up with the element Oxygen?
Mendeleev (or at least predicted its existence)
Who came up with periodic table?
Dmitri Mendeleev came up with the modern Periodic Table in 1869.
What did Robert Merton call a prediction that came true only because the prediction was made?
A Self-Fufilling Prohecy
How was it hard to decide the periodic table?
Many attempts were made by Dobereiner , Newlands and Mendeleev in initial stages. Later on , the idea of arranging elements in increasing atomic number came up which is the today's periodic table.
What prediction did Mendeleev make that came true less than 20 years?
He said that te three new elements would be discovered, and he described their properties.
Was Pericles alive during the Trojan War?
He came along 700 years later.
What came first the Declaration of Independence or the emancipation proclamation?
The Declaration of Independence was signed in 1776, the Emancipation Proclamation was proclaimed in 1863, so it came 87 years later (or as Abraham Lincoln said, four score and seven years later).
