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Answered 2014-11-21 05:36:15

Mendeleev was able to predict the properties of the elements that were not discovered at that time. He left gaps for these elements in his periodic table.


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Mendeleev periodic table was able to predict the properties of new elements which were discovered later on.

Dmitri Mendeleev created the first periodic table. Using his table, he was able to predict the properties of undiscovered elements.

because noble gases were not discovered when Mendeleev proposed his periodic table

Mendeleev was the first person to publish table. Lavoisier work was not able to publish.

Mendeleev is considered as the developer of the first periodic table. He arranged the elements in the increasing order of their atomic masses. Mendeleev's Periodic Law states that properties of elements are the periodic functions of their atomic masses. Mendeleev was able to predict the existence of more elements in nature and laid gaps in the periodic table for the elements to be discovered in future. Note: Mendeleev's periodic table was not free of errors. Now we follow the Bohr Periodic table. It was developed by Rang (1893), modified and developed by Warner (1905) and further developed by Bury (1921).

Dmitri Ivanovich Mendeleev is credited as being the creator of the most modern version of the periodic table of elements (with notable improvements by others). Using his form of the periodic table, Mendeleev was able to predict the properties of elements that hadn't been discovered.

he created the first periodic table tat organized elements by their atomic number.

Mendeleev was able to predict the properties of the yet unknown element (Germanium) by the properties of the surrounding known elements on his periodic table of the elements. Predicting properties such as reactivity, density, atomic mass, etc., he knew where the undiscovered element would be placed.

He created the first perodic table and organized the element in the periodic table by atomic mass

Mendeleev left those gaps for the elements which were not discovered at that time. He named those elements like eka-aluminium,eka -silicon etc.

Mendeleev was the inventor of the periodic table. He organized all the known elements into the periodic table based on atomic number. He was also able to predict the existence of elements that had not yet been discovered based on gaps in the table he created. Based on observations of other elements in the groups he was also able to predict the characteristics of these unknown elements as well. NICE! dude

Mendeleev placed the known elements in order of increasing atomic mass. He then grouped the elements based on similar chemical properties. In this way, he was able to notice gaps in the table where unknown elements should be and to predict their chemical properties.

The periodic law came first. Mendeleev enunciated this law as "when the elements are arranged in order of increasing atomic weight, there is a periodic repetition of their chemical properties". He proceeded to construct a table based around this law. In constructing the periodic table Mendeleev used remarkable chemical insight, changing the atomic weights of several elements, atomic weight and valence of a few, and leaving a few spaces where there seemed to be room for an undiscovered element in the table -- he was able to predict the chemical properties of these then undiscovered elements with amazing accuracy.

Mendeleev ignored the order of atomic mass for few elements. He was not able to fix those elements which were having isotopes.

Dmitri Mendeleev, a Russian scientist. He arranged cards in atomic weight order and noticed patterns (periods). This resulted in him being able to guess which elements were missing and complete the periodic table.

mendeleev was able to use the patterns in any table to predict the properties of these undiscovered elements.

Mendeleev developed the periodic table of elements by arranging the elements in order of increasing atomic mass in 1869. He discovered that elements with similar properties occurred in a periodic pattern. He was able to predict the properties of elements that were missing at the time because of this pattern. In 1914, Moseley contributed to the periodic table by reorganizing the elements according to atomic number.

Mendeleev thought it simply meant that the elements which belonged in the gaps had not yet been discovered. He was also able to work out the atomic mass of the missing elements, and so predict their properties.

he invented an early version of the periodic table, and was able to use it to predict what unfound elements properties would be he follow the periodic law and place the similar elements according their mass number.

Mendeleev arranged the elements in a table ordered by atomic mass, corresponding to relative molar mass as defined today. Mendeleev predicted the discovery of other elements and left space for these new elements, namely eka-silicon (germanium), eka-aluminium (gallium), and eka-boron (scandium). Thus, there was no disturbance in the periodic table.

Mendeleev believed and enunciated the law of periodicity of chemical properties for chemical elements.

Mendeleev first created the periodic table in 1869. He thought that the elements must be organised in some way, that we would be able to use for experiments. And he first thought of the periodic table. He tried and tried but could not get them all to fit. He stayed up for hours, until finally giving up late at night. But when he went to bed, he did not know that just hours later, he would make one of the biggest discoveries yet... He went to bed and dreamed about the periodic table. Then, he dreamt of one only possible way too make the elements fit together. He suddenly woke up, and put all his cards in place, and the periodic table was made.

He didn't know that there was going to be any more elements be he left caps in some just in case then later on in the years the periodic table was changed

He could not because it had not yet been discovered when he created the table. However he was able to determine that an element was missing at that location and predict the properties it would have when it was discovered. When germanium was discovered and named, his predictions were found to be very accurate.

The first periodic table was developed by Dmitri Mendeleev in the mid-19th century.He wasn't the only person thinking along those lines ... both John Newlands and Lothar Meyer had proposed similar ideas However, Newlands was largely criticized and ignored at the time, and Meyer didn't make any predictions, so Mendeleev's table (which did make predictions about the properties of several as-yet-undiscovered elements) is generally regarded as the first.

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