Question

Write the advantages and limitations of mendliv

Answer 1

Answer:

Explanation:

advantages:

1.leaves spaces for undiscovered elements

2.can predict the properties of undiscovered elements.

3.elements in the same group have same valence electrons

4. elements in same period have same number of shells

limitations:

1. certain pairs having higher atomis weigths are given higher positions

2. position of . rare . earths and actinides could not be specified

3. position of isotopes was not specified.