Examples: density, melting point, atomic weight, density and formula of oxide.
Mendeleev predicted the name "eka-aluminium" for the element that is now known as gallium. This naming convention was based on the positions of the elements in his periodic table.
Mendeleev predicted that gallium belonged to the R2O3. Gallium was not discovered until 1874. The noble gases weren't discovered until 1894 through 1899.
Mendeleev predicted that properties of elements are periodic function of atomic mass. He demonstrated it by creating a table.
Gallium is just an element and as such it does not have either a good or bad nature, having a nature is a property of a thinking animal.
The discovery of undiscovered elements with properties predicted by Mendeleev's periodic table (like gallium, germanium, and scandium) confirmed the accuracy of his organization. These elements filled gaps in the periodic table and established a pattern of periodicity that supported Mendeleev's initial insights.
Mendeleev predicted the name "eka-aluminium" for the element that is now known as gallium. This naming convention was based on the positions of the elements in his periodic table.
Mendeleev predicted that gallium (Ga) would have properties of a metal based on its position in the periodic table. Gallium exhibits characteristics of a metal, such as being solid at room temperature, having a metallic luster, and conducting electricity.
The fundamental properties that Mendeleev predicted for gallium was that it would be a bright metal color and it would have a high boiling point. It would also have a relative density of 5.5 and an atomic mass of 72.
mendeleev
Mendeleev predicted that gallium belonged to the R2O3. Gallium was not discovered until 1874. The noble gases weren't discovered until 1894 through 1899.
The close match between Mendeleevs prediction and the actual properties of new elements showed how usefullhis pariodic tabel could be.
The close match between Mendeleevs prediction and the actual properties of new elements showed how usefullhis pariodic tabel could be.
Mendeleev predicted that properties of elements are periodic function of atomic mass. He demonstrated it by creating a table.
Mendeleev had some empty spaces in his table. On being asked why he left spaces, instead of seeing it as a drawback, he confidently said that those were the places for "yet to be discovered elements". He named them by prefixing the Sanskrit numeral "Eka-" to the preceding element.For example, he named Gallium as "Eka-aluminium", Germanium as "Eka-Silicon" and so on. Later, when a new element was found and was named as Gallium, it was observed that it had almost same properties as that of Eka-Aluminium predicted by Mendeleev. As his predictions were almost accurate, other scientists began to accept that his classification was indeed better than any others'. And so, it was accepted.
Gallium is just an element and as such it does not have either a good or bad nature, having a nature is a property of a thinking animal.
A mixture of aluminum and an unknown element.
A: Because the element has different property as gallium arsenide.