What is the common characteristic of the elements of the same group in the periodic table?

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Question:

What is the common characteristic of the elements of the same group in the periodic table?

A.

Electrons in outer most shell

B.

Total number of electrons

C.

Total number of protons

D.

Atomic weight

Answer» a. Electrons in outer most shell

Note: The above multiple-choice question is for all general and Competitive Exams in India.