Question

Re-order each list of elements in the table below, if necessary, so that the elements are listed in order of decreasing electronegativity elements elements in order of decreasing electronegativity P.F.N х 0,B,C

Answer 1

1) F > N>P
We know F is the most electronegative element.
N and P in the same group , as we move down the group electronegativity decreases. Thus the order F > N > P

2) O > C > B
All three in the same period, as we move from left to right across the period, the electronegativity increases.
Thus the order.