Question

Describe salient features of long form of periodic table?

Answer 1

Answer:

Main Features of the Long Form of the Periodic Table : (1) It shows arrangement of elements based on modern periodic law. (2) There are 18 vertical columns known as groups. (3) There are 7 horizontal rows known as periods

Answer 2

Answer:

Main features of the long form of the periodic table:

• It shows arrangement of elements based on modern periodic law.
• There are 18 vertical columns known as groups.
• There are 7 horizontal rows known as periods.

Explanation:

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