Arrange the following elements in order of increasing electronegativity: lead, astatine, polonium, bismuth smallest: largest: Solution the given elements all belong to the same period in the periodic table now the trend is that along the period from left to right , electronegativity increases in the periodic table they are arranged as follows Pb Bi Po At so At will have the highest EN value and Pb will have the lowest so the order is smallest , Pb < Bi < Po < At , largest smallest , lead < bismuth < polonium < astatine , largest .

1. Arrange the following elements in order of increasing electronegativity:
lead, astatine, polonium, bismuth
smallest:
largest:
Solution
the given elements all belong to the same period in the periodic table
now
the trend is that
along the period from left to right , electronegativity increases
in the periodic table they are arranged as follows
Pb Bi Po At
so
At will have the highest EN value and Pb will have the lowest
so
the order is
smallest , Pb < Bi < Po < At , largest
smallest , lead < bismuth < polonium < astatine , largest