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Q.
The triad of nuclei that is isotonic is
NTA AbhyasNTA Abhyas 2020Nuclei
Solution:
Isotonic species are defined as the species which have the same number of neutrons.
No. of neutrons in:
$
{ }_6 C ^{14}=14-6=8
$
$
{ }_7 N ^{14}=14-7=7
$
$
{ }_9 F ^{19}=19-9=10
$
$
{ }_7 N ^{15}=15-7=8
$
$
{ }_9 F ^{17}=15-7=8
$
$
{ }_6 C ^{12}=12-6=6
$
${ }_6 C ^{14},{ }_7 N ^{15},{ }_9 F ^{17}$ are isotonic species.