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Considering the elements B, Al, Mg and K , the correct order of their metallic character is
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a
B > Al > Mg < K
b
Al > Mg > B > K
c
Mg > Al > K < B
d
K > Mg > Al > B
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Correct option is D
B…non metal ; Al, Mg and K …..metals ;Left to right metallic character decreases… Al < Mg ;‘K’ has maximum metallic character in the given elements….First group and fourth period ;K > Mg > Al > B ;Similar Questions
Which of the following property has no units ?
i) Electronegativity .
ii) Electron gain enthalpy
iii) Metallic character
iv) Ionization energy
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