Question

State Modern Periodic Law. How could the Modern Periodic Table remove various anomalies of Mandel|éevs Periodic Table? ​

Answer 1

Answer:

The 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 2

Answer:

1. In the Modern Periodic Table atomic number of an elements is a more fundamental property than its atomic mass.

2. The anomalous position of hydrogen can be discussed after we see what are the basis on which the position of an elements in the Modern Periodic Table depends.

3. The elements present in any one group have the same number of valence electrons.

4. Atoms of different elements with the same number of occupied shells are placed in the same period.

5. In the Modern Periodic Table, a zig-zag line separated metals from non-metals.