Question

Rank the following atoms in order of most negative to most positive electron affinity. Items in order Items (5 items) (Drag and drop into the appropriate area) Most Positive

Answer 1

'Electropositive: Tendency to lose Cledraus to form positive ions if known cie electro positive. on going down to group electto positive increasep because it easy to remove an electrow because size is big hence torate interadiau blw centeral atomo & outermost stort in et effective. on going left to right tendency to lose election deteaser hence electropositive decreases because on left to right the interaction blw ceuli atau & surrounding electrow increases hence it's difficult to remove au Gectiau hence · electlo positivity deceases. Electronic configuration of As a [Ar]3d1° 4 s²up3. Electranic configuration of se= [Ar]3d1° us²Up".

Electharic configuration of Kr=1183010452.upo Electronic configuration of Bra [Ar]3d104524p5 Electronic configuration of Ga= [Ar]3d1045? up! As we know an going left toriqut electio positivity A decreases. hence. Ga in the most electie positive & kr is the most electronegative. because in Ga it's easy to remove one election from it. most eleellopositive : DE 1) Ga. 2) As 3) se 4) Br, S) kr. 19