Question

18 (iv) Identify the reason for the gradual change in electronegativity in halogens
down the group.
a) Electronegativity increases down the group due to decrease in atomic
size
b) Electronegativity decreases down the group due to decrease in
tendency to lose electrons
c) Electronegativity decreases down the group due to increase in atomic
radius/ tendency to gain electron decreases
d) Electronegativity increases down the group due to increase in forces of
attractions between nucleus & valence electrons​

Answer 1

Answer:

The electronegativity of the halogens decreases down the group as theradius of each atom increases due to more shells. This means there is less attraction between the positive nucleus and the outer electrons as you go down the group.

Answer 2

Answer:

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