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How did mendleev classify elements
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What are the advantages of Mendleev's periodic table
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What are the disadvantages of Mendleev's periodic table
....
How many elements was in mendleev's periodic table
67
What was the name of the book that mendleeve explained his periodic table in?
The principles of chemistry
G.R / mendleev had to make disturbance in the ascending order of atomic weights of some elements
To put them in groups that suits their properties
G.R/mendleev would have to deal with isotopes of one element which were discovered later as different elements
Due to the difference in their atomic weights
G.R/ Mendleev had to put more than one element in one cell
Due to the similarity in their properties
The scientist who left empty cells in the table to be filled with discovered elements in future
Mendleev
The number of elements which exist in nurture according to the modern periodic table
92
The number of known elements in modern periodic table till now is
118
complete / The modern periodic table consists of........ horizontal periods
7
Complete / the modern periodic table consists........ vertical groups
18
The modern periodic table consists of...... main blocks
4
Who is the scientist that discovered that nucleucs of the atom contains positively charged protons
Rutherford
The first real preodic table for classifying element
Mendleev's periodic table
