Question

what are achievements of modern periodic table​

Answer 1

Answer:

Elements when arranged in the order of their increasing atomic number lead us to a classification called modern periodic table. Prediction of the elements could be made with more precision when elements are arranged in the order of their atomic number.

Achievements of the Modern periodic tables are as under:- 1) Systematic study of elements:- As the elements having same properties are grouped together so it becomes very useful to remember the properties of large number of elements in a systematic way.

Answer 2

Answer:

Achievements of Modem periodic table are:

(i) Prediction of properties of elements could be made with more precision since elements were arranged on the basis of increasing atomic number.

(ii) Metals are separated from non-metals by a zig-zag line. On this zig-zag line borderline elements-like Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium and Polonium which are also known as metalloids are present.

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