Dmitri left those spaces for elements which were not discovered at that time. he named it eka-aluminium, eka silicon etc.
Dmitri Mendeleev left blank spaces on the periodic table to account for elements that had not been discovered yet. He predicted the existence and properties of these missing elements based on the patterns and trends of the known elements in the table. This allowed for the successful prediction of the characteristics of elements like gallium and germanium.
Dmitri invented a periodic table in 1869 where he arranged the elements in order of increasing atomic masses.
Dmitri Ivanovich Mendeleev (1834 - 1907) is considered the father of the periodic table.
Dmitri Mendeleev is credited with creating the periodic table of elements. He organized elements by their atomic mass and properties, which led to the development of the modern periodic table.
Dmitri Mendeleev
Dmitri Mendeleev left blank spaces on the periodic table to account for elements that had not been discovered yet. He predicted the existence and properties of these missing elements based on the patterns and trends of the known elements in the table. This allowed for the successful prediction of the characteristics of elements like gallium and germanium.
Because
I believed you are referring to Dmitri Mendeleev. He left blank space because he was able to deduce a pattern between the chemical properties of the elements an their atomic weights. He also noticed gaps in this pattern and hypothesized correctly that these blank spots corresponded to elements that had not yet been discovered.
http://en.wikipedia.org/wiki/Mendeleev%27s_predicted_elements It says he predicted more than three.
Mendeleev left blank spaces in his periodic table to account for elements that had not yet been discovered. He predicted the properties of these missing elements based on the patterns he observed in the table. This empty spaces allowed for the periodic table to be a predictive tool for the discovery of new elements.
Carbon is the main element that exists as graphite in the periodic table. Graphite is a form of carbon where the atoms are arranged in layers that can slide over each other easily, giving it its lubricating properties.
the left side of the preodic table consistes of metals, the right side is of non metals, the middle ones are transition metals.
63 elements were in Dmitri Mendeleev's First periodic table 63 elements were in Dmitri Mendeleev's First periodic table
Dmitri Mendeleev published his periodic table in 1869.
Dmitri Ivanovich Mendeleyev. Another spelling of his name is Dmitri Ivanovich Mendeleev.
Dmitri Mendeleev first periodic table is called Mendeleev's periodic table. Elements are arranged according to atomic mass.
Dmitri invented a periodic table in 1869 where he arranged the elements in order of increasing atomic masses.