Question

State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table ? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids ?

Answer 1

(i) Aim of classification: Systematic Study of the known elements.

(ii) Basic property: Atomic number. 

(iii) Properties of the elements are a periodic function of their atomic numbers.

(iv) Metals on the left.

(v) Non-metals on the right.

(vi) Metalloids at the border of metals and beginning of non-metals.