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Mendeleev used the properties of gallium, scandium, and germanium to predict their existence before they were discovered. Their discovery and properties helped confirm the accuracy of Mendeleev's Periodic Table and his periodic law. This further solidified Mendeleev's contributions to the development of the modern periodic table.
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What were the three missing elements in the periodic table?
See "Mendeleev's predicted elements" in Wikipedia The answers are: scandium (Sc - 21), gallium (Ga - 31), technetium (Tc - 43), and germanium (Ge - 32) He temporarily named them to be: ekaboron (Eb), ekaaluminium (El), ekamanganese (Em), and ekasilicon (Es).
What elements of the periodic table can be combined with the element scandium?
Only a few elements can be chemically combined with scandium. Here are a few examples of chemical reactions involving Scandium;Scandium + Chlorine --> Scandium (III) ChlorideScandium + Nitrogen --> Scandium (III) NitrateScandium + Sulphur --> Scandium (III) SulphideScandium + Oxygen --> Scandium (III) Oxide
How was the person who devised the first periodic table able to predict the behavior of elements such as gallium scandium and germanium that had not even been discovered yet?
The reason the periodic table was created in the first place was to illustrate the "periodic" physical properties of the known elements of the time. Because of this, the properties of elements that were "missing" from the table could be extrapolated from the periodic trends seen in the known elements.
Why were the elements Ga Sc and Ge important to Mendeleev?
Mendeleev included gallium (Ga), scandium (Sc), and germanium (Ge) in his periodic table because they filled gaps in the sequence of known elements at the time and helped demonstrate the periodicity of their properties. These elements were crucial in showing the predictive power of Mendeleev's periodic table in suggesting the existence of unknown elements and their properties.
From gaps in his table mendeleev predicted the existence of several elements and their?
properties. Mendeleev's periodic table had gaps for elements that had not been discovered yet, but he was able to predict their properties based on the patterns of the elements surrounding the gaps. This led to the discovery of new elements like gallium, germanium, and scandium.
What elements were named after countries?
americium, germanium, scandium, polonium
What did mendeleev call his as-yet-undiscovered elements?
he called them the actinides. they were ekaaluminium, ekaboron, and ekasilicon (aka germanium, gallium, and scandium)
What element did Mendeleev predict before it was discovered?
Mendeleev predicted that gallium belonged to the R2O3. Gallium was not discovered until 1874. The noble gases weren't discovered until 1894 through 1899.
What are the elements of scandium?
Scandium is, itself, an element and so there are no elements of scandium.
What were the three missing elements in mendeleyev chart?
The missing elements that Mendeleev predicted in his periodic table were germanium, gallium, and scandium. Mendeleev left gaps in the table for these elements based on the patterns he observed in the known elements at the time.
What elements are named after are countries?
Elements are named after countries, not countries after elements ! Countries: francium, germanium, gallium, ruthenium, indium Regions: scandium, hassium, californium Continents: americium Also many towns.
Which elements did Mendeleev leave space for in his first periodic table?
Mendeleev left spaces for undiscovered elements. He named them eka-aluminium, eka-silicon etc.
Which elements did Mendeleev leave spaces?
What Mendeleyev did with the empty spaces was that he left them empty. Say for example, he didn't know Boron, because it wasn't discovered at that time. He left the spot for Boron empty because he didn't know what it was. He predicted that in the future, scientists would find out about new elements, and his predictions were right. That's why, the modern Periodic Table of Elements has more elements that Mendeleyev had put on his list of elements.
What is eka boron eka aluminum eka silicon?
Eka boron, eka aluminum, and eka silicon are theoretical elements predicted by Mendeleev's periodic table to fill in the gaps in the periodic table. They were later discovered and named as Scandium, Gallium, and Germanium, respectively.
What were the three missing elements in the periodic table?
See "Mendeleev's predicted elements" in Wikipedia The answers are: scandium (Sc - 21), gallium (Ga - 31), technetium (Tc - 43), and germanium (Ge - 32) He temporarily named them to be: ekaboron (Eb), ekaaluminium (El), ekamanganese (Em), and ekasilicon (Es).
What is the names of the element scandium family members?
The elements under the scandium family are as follows: ► scandium ► yttrium ► lanthanum ► actinium
What elements of the periodic table can be combined with the element scandium?
Only a few elements can be chemically combined with scandium. Here are a few examples of chemical reactions involving Scandium;Scandium + Chlorine --> Scandium (III) ChlorideScandium + Nitrogen --> Scandium (III) NitrateScandium + Sulphur --> Scandium (III) SulphideScandium + Oxygen --> Scandium (III) Oxide
