Chapter 11 -Group 17

Question 1

Volatility ____ down group 7

Answer 1

decreases

Question 2

why does volatility decrease down the group

Answer 2

they get larger in size and relative mass

stronger dp-dp forces can develop between molecules

so the halogens boil at higher temps down the group

stronger im forces require more energy to overcome

Question 3

electroneg _____ down the group

Answer 3

decreases

Question 4

electronegativity decreases down the halogens because

Answer 4

nuclear charge increases down group because protons added

atomic radius increases down the group because more electron shells are added

electron shielding reduces atoms overall ability to attract electrons

Question 5

halogen bond strength _______ down group 7

Answer 5

decreases

Question 6

Halogens react by

Answer 6

gaining electrons

Question 7

Reactivity ______ down group 7

Answer 7

decreases