The characteristics which remains same on moving down a sub-group:
atomic size
ionization potential
valence shell electrons
electronegativity
A
electronegativity
B
atomic size
C
valence shell electrons
D
ionization potential
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Solution
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As we know, group element have same configuration ns1−2np1−6 so as we move down the group, valence shell electrons remain same and other properties changes.
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