Question

which of the following elements(identified by their place in the periodic table would be most electronegative:
a. group IV, Period 2
b. Group VI, period 2
c. Group VI, period 3
d. group VII, period4

Answer 1

Electronegativity increases across the period
and decreases as down we go down the group

Answer 2

http://chemwiki.ucdavis.edu/Inorganic_Chemistry/Descriptive_Chemistry/Periodic_Trends_of_Elemental_Properties/Periodic_Trends

Answer 3

i am stuck between c and d. flourine is the most electronegative and is located in group 7 so would that be the answer?

Answer 4

http://en.wikipedia.org/wiki/Electronegativities_of_the_elements_(data_page)

Answer 5

why would the answer be c, but not d?

Answer 6

The answer would be d, bromine

Answer 7

the answer the key gives is c and it says that most EN has highest group # and lowest period #.
idk how to choose which is more electronegative when they only one off of eachother. I thought it was d too

Answer 8

thats is very weird. Because i think its B
Oxygen is the closest to Florine so i'd expect it to have highest value for electronegativity.
its not bromine because its way below florine, and we do know that electronegativity decreases down the group

Answer 9

lol you are right, @Somy i didn't see oxygen was in there. Br is more EN than S though.

Answer 10

yeah yeah thats why i believe its supposed to be B @aaronq lol

Answer 11

so i emailed the prep class and he says it was experimental and that sometimes the answers are plain out wrong. He believes it is B, but the key says it is C. thanks for the help anyway

Answer 12

i see :) no problem :))