The modern periodic table was prepared by :
(a) Dobereiner (b) Newlands (c) Bohr (d) Mendeleev
Option d is the correct answer.
Dmitri Mendeleev was the first scientist to make a periodic table similar to the one used today
(a) State modern periodic law.
(b) How does the electronic configuration of the atom of an element relate to its position in the modern periodic table?
(c) How could the modern periodic law remove various anomalies of Mendeleev’s periodic table? Explain with examples.
(d) Is it possible to have an element having atomic number 1.5 placed between hydrogen and helium?
(e) Name the scientist who prepared the modern periodic table.