Isotopes of fluorine
List of isotopes
Table:
nuclide
symbol

Z(p)

N(n)

isotopic mass (u)[7]

half-life

decay mode(s)[4]

daughter
isotope(s)[n 1]

nuclear
spin and
parity

representative
isotopic
composition
(mole fraction)

range of natural
variation
(mole fraction)

excitation energy

14F

9

5

14.03432(4)

500(60)×10−24 s
[910 keV]

p

13O

2-

15F

9

6

15.017785(15)

1.1(0.3)×10−21 s
[1.0(2) MeV]

p

14O

1/2+

16F

9

7

16.011466(9)

11(6)×10−21 s
[40(20) keV]

p

15O

0−

17F

9

8

17.00209524(27)

64.370(27) s

β+

17O

5/2+

18F[n 2]

9

9

18.0009373(5)

109.739(9) min

β+ (96.86%)

18O

1+

EC (3.14%)[5]

18O

18mF

1121.36(15) keV

162(7) ns

IT

18F

5+

19F

9

10

18.9984031629(9)

Stable

1/2+

1.0000

20F

9

11

19.99998125(3)

11.163(8) s

β−

20Ne

2+

21F

9

12

20.9999489(19)

4.158(20) s

β−

21Ne

5/2+

22F

9

13

22.002999(13)

4.23(4) s

β− (89%)

22Ne

(4+)

β−n (11%)

21Ne

23F

9

14

23.00353(4)

2.23(14) s

β− (86%)

23Ne

5/2+

β−n (14%)

22Ne

24F

9

15

24.00810(10)

384(16) ms

β− (94.1%)

24Ne

3+

β−n (5.9%)

23Ne

25F

9

16

25.01217(10)

80(9) ms

β− (76.9%)

25Ne

(5/2+)

β−n (23.1%)

24Ne

26F

9

17

26.02002(12)

8.2(9) ms

β− (86.5%)

26Ne

1+

β−n (13.5%)

25Ne

26mF

643.4(1) keV

2.2(1) ms

IT (82%)

26F

(4+)

β−n (12%)

25Ne

β−n (6%)

26Ne

27F

9

18

27.02732(42)

4.9(2) ms

β−, n (77%)

26Ne

5/2+#

β− (23%)

27Ne

28F

9

19

28.03622(42)

46×10-21 s

n

27F

29F

9

20

29.04310(56)

2.5(3) ms

β−, n (60%)

28Ne

5/2+#

β− (40%)

29Ne

31F

9

22

31.06027(59)#

1# ms [>260 ns]

β−

31Ne

5/2+#

Consulting the following table concerning 'Isotopes of fluorine' in the 'List of isotopes' section, create one factual sentence about the highlighted cells, without adding extra data and provide it inside the JSON object {"answer": "YOUR ANSWER"}.