Question

How classification of elements done by Dobereiners, Newland and Mendeleev
explain with example. In modern periodic table elements are put by which
function ?​

Answer 1

Answer:

in our nearest ride in the year 1817 John Wolfgang Debonair showed that when the three elements in the triad written in the form of increasing atomic mass is the atomic masses of the middle element was roughly the average of the atomic mass of other two elements for example considered as the following element nitrogen Palladium and arsenic that the mass of phosphorus is approximately equal to the average of the masses of Nickel and arsenic

in the newlands of law of octaves in 1866 John newlands and then the known elements in the order of the Ring creating atomic masses are found that every element had a properties similar to that of the first compared to his to the doctor was found in music therefore called law of octaves

in Mendeleev's periodic table mandali arrange the elements based on their atomic masses you observe that when the elements vary arranged in the increasing order of their atomic masses there were the periodic reoccurrence in their physical and chemical properties mentally formulated a Periodic table which state the physical and chemical properties of elements are periodic function of their atomic masses Mendeleev periodic table contains eight column vertically and take horizontal rows

the modern periodic table in 1913 Henry mojale showed that the atomic number of an element is more fundamental property than its atomic mass the modern periodic table was put forward which can be stated as follow the physical and chemical properties of elements are periodic function of their atomic number the scientist read arranging the elements in the increasing order of their atomic number in the modern periodic table has vertical 8 columns known as groups in 7 house and Rose known as periods