Question

short summary of periodic classification of elements

Answer 1

it tells hw different elements were at different times
years ago there was choas among the people on how to classifiy the elements
later lavouiser classified on the basis of metals and non metals
then dobereiner classified on the basis of increasing chemical properties
he made groups of three known as triads
afterwards newland classified the elements
he classified in such a way tjat the properties of the eight element is the reception of the properties of the first element
 then comes mendeleev clasiification
he took atomic mass
finally the modern periodic table was formed by henry mosley
for the xam study all the advantages and disadvantages of all the table
hw to find a element if the group number and period are given
and finally trends in periodic table
hop it helps 
mark as brainliest

Answer 2

it tells hw different elements were at different timesyears ago there was choas among the people on how to classifiy the elementslater lavouiser classified on the basis of metals and non metalsthen dobereiner classified on the basis of increasing chemical propertieshe made groups of three known as triadsafterwards newland classified the elementshe classified in such a way tjat the properties of the eight element is the reception of the properties of the first element then comes mendeleev clasiificationhe took atomic massfinally the modern periodic table was formed by henry mosleyfor the xam study all the advantages and disadvantages of all the tablehw to find a element if the group number and period are givenand finally trends in periodic table