JEE Main Chemistry question

The statement that is true for the long form of the Periodic Table is

(A)It reflects the sequence of filling the electrons in the order of sub-energy levels and
(B)It helps to predict the stable valency states of the elements
(C)It reflects trends in physical and chemical properties of the elementsCorrect
(D)All of the above

Answer: (C)

Solution

The fundamental purpose and defining feature of the long form of the Periodic Table is that elements are arranged so that periodic trends in physical and chemical properties (such as atomic size, ionisation energy, electronegativity, metallic/non-metallic character) are clearly reflected across periods and groups.

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Question ID VK-133304