Order of electronegativity for a set of elements

1. A.
   $C > P > At > Br$
2. B.
   $Br > P > At > C$
3. C.
   $P > Br > C > At$
4. D.
   $Br > C > At > P$

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1. A.
   $Al < Mg < B < N$
2. B.
   $Al < Si < C < N$
3. C.
   $Mg < Be < B < N$
4. D.
   S $<$ Cl $<$ O $<$ F

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1. A.
   A $<$ D $<$ B $<$ C
2. B.
   A $<$ C $<$ B $<$ D
3. C.
   A $<$ B $<$ C $<$ D
4. D.
   D $<$ A $<$ B $<$ C

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