What is the basic theme of organisation ...

What is the basic theme of organisation in the periodic table?

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The basic theme of organisation of elements in the periodic table is to classify the elements in periods and groups according to their properties. This arrangement makes the study of elements and their compounds simple and systematic. In the periodic table, elements with similar properties are placed in the same group.

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Knowledge Check

What is the basis of the long form of the periodic table?

A

Atomic mass

B

Atomic number

C

Atomic size

D

Metallic and nonmetallic character

Which of the following is true in the periodic table?

A

Atomic size increases from left to right across a period.

B

Electron affinity decreases on going down a group.

C

Metallic character decreases from left to right across a period.

D

Electronegativity increases on going down a group.

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