How could the Modern Periodic Table remove various anomalies of Mendeleev’s Periodic Table?
Answers
Answer:
Modern Periodic Table could remove various anomalies of Mendeleev's Periodic Table: a) In the Modern Periodic table elements are arranged in the increasing order of their atomic number, removing the anomaly regarding certain pairs of elements in Mendeleev's periodic table.
Answer:
Explanation:
(i) The Modern Periodic Table was classified on
the basis of atomic number. All isotopes of the
same elements have different masses but same
atomic number. Therefore, they occupy the same
position in the Modern Periodic table.
(ii) When elements are arranged according to their
atomic numbers, the anomaly regarding certain
pairs of elements in Mendeleev’s Periodic Table
disappears e.g. atomic number of cobalt and
nickel are 27 and 28 respectively. Therefore,
cobalt will come first and then nickel, although
atomic mass of cobalt is greater.