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Question

All the members in a group of a long form of periodic table have the same :

A
valency
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B
number of valence electrons
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C
chemical properties
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D
physical characteristics
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Solution

The correct options are
A valency
B number of valence electrons
C chemical properties
The elements of a same group in modern periodic table has same valency as they have same number of valence electrons. Hence, exhibit similar chemical properties.

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