Which one of the following ionic species has the greatest proton affinity to form stable compound ?
A.
$$C{l^ - }$$
B.
$${F^ - }$$
C.
$${I^ - }$$
D.
$$B{r^ - }$$
Answer :
$${F^ - }$$
Solution :
Proton affinity decreases in moving across the period from left to right due to increase in charge, within a group the proton affinities decreases from top to bottom.
Releted MCQ Question on Inorganic Chemistry >> Classification of Elements and Periodicity in Properties
Releted Question 1
The correct order of second ionisation potential of carbon, nitrogen, oxygen and fluorine is