Question

Which statement is not true for the long form of the periodic table

I. It helps to predict the stable valence of the element

II. It reflects trend in physical and chemical properties of the elements

III. It reflects the sequence of filling the electrons in the order of the sub-energy levels

IV. The elements are arranged on the basis of their atomic mass​

Answer 1

Answer:

I think option 1

Explanation:

yeah. 1 f not then 4. but others not

Answer 2

Answer:

stop sharing such irrelevant questions