Isotopes of neon

Neon (10Ne) possesses three stable isotopes: 20Neon, 21Neon, and 22Neon. In addition, 17 radioactive isotopes have been discovered, ranging from 15Neon to 34Neon, all short-lived. The longest-lived is 24Neon with a half-life of $3.38 minutes$. All others are under a minute, most under a second. The least stable is 15Neon with a half-life of $770 ys$ ($7.7 s$). See isotopes of carbon for notes about the measurement. Light radioactive neon isotopes usually decay to fluorine or oxygen, while heavier ones decay to sodium.

List of isotopes

 * 15Neon
 * style="text-align:right" | 10
 * style="text-align:right" | 5
 * $15.043$ [$770 ys$]
 * 2p
 * 13Oxygen
 * (3/2−)
 * 16Neon
 * style="text-align:right" | 10
 * style="text-align:right" | 6
 * > $590 keV$ [< $16.026$]
 * 2p
 * 14Oxygen
 * 0+
 * rowspan=4|17Neon
 * rowspan=4 style="text-align:right" | 10
 * rowspan=4 style="text-align:right" | 7
 * rowspan=4|$5.7 zs$
 * rowspan=4|$80 keV$
 * β+p ($17.018$)
 * 16Oxygen
 * rowspan=4|1/2−
 * rowspan=4|
 * rowspan=4|
 * β+α ($109.2 ms$)
 * 13Nitrogen
 * β+ ($94.4 %$)
 * 17Fluorine
 * β+pα ($3.51 %$)
 * 12Carbon
 * 18Neon
 * style="text-align:right" | 10
 * style="text-align:right" | 8
 * β+
 * 18Fluorine
 * 0+
 * 19Neon
 * style="text-align:right" | 10
 * style="text-align:right" | 9
 * β+
 * 19Fluorine
 * 1/2+
 * 20Neon
 * style="text-align:right" | 10
 * style="text-align:right" | 10
 * colspan=3 align=center|Stable
 * 0+
 * 0.9048(3)
 * [$2.1 %$, $0.014 %$]
 * 21Neon
 * style="text-align:right" | 10
 * style="text-align:right" | 11
 * colspan=3 align=center|Stable
 * 3/2+
 * [$18.006$, $1,664.2 ms$]
 * 22Neon
 * style="text-align:right" | 10
 * style="text-align:right" | 12
 * colspan=3 align=center|Stable
 * 0+
 * [$19.002$, $17.257 s$]
 * 23Neon
 * style="text-align:right" | 10
 * style="text-align:right" | 13
 * β−
 * 23Sodium
 * 5/2+
 * 24Neon
 * style="text-align:right" | 10
 * style="text-align:right" | 14
 * β−
 * 24mSodium
 * 0+
 * 25Neon
 * style="text-align:right" | 10
 * style="text-align:right" | 15
 * β−
 * 25Sodium
 * 1/2+
 * rowspan=2|26Neon
 * rowspan=2 style="text-align:right" | 10
 * rowspan=2 style="text-align:right" | 16
 * rowspan=2|$19.992$
 * rowspan=2|$0.885$
 * β− ($0.905$)
 * 26Sodium
 * rowspan=2|0+
 * rowspan=2|
 * rowspan=2|
 * β−n ($20.994$)
 * 25Sodium
 * rowspan=3|27Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 17
 * rowspan=3|$0.003$
 * rowspan=3|$0.003$
 * β− ($0.017$)
 * 27Sodium
 * rowspan=3|(3/2+)
 * rowspan=3|
 * rowspan=3|
 * β−n ($21.991$)
 * 26Sodium
 * β−2n ?
 * 25Sodium ?
 * rowspan=3|28Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 18
 * rowspan=3|$0.093$
 * rowspan=3|$0.092$
 * β− ($0.1$)
 * 28Sodium
 * rowspan=3|0+
 * rowspan=3|
 * rowspan=3|
 * β−n ($22.994$)
 * 27Sodium
 * β−2n ($37.15 s$)
 * 26Sodium
 * rowspan=3|29Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 19
 * rowspan=3|$23.994$
 * rowspan=3|$3.38 min$
 * β− ($24.998$)
 * 29Sodium
 * rowspan=3|(3/2−)
 * rowspan=3|
 * rowspan=3|
 * β−n ($602 ms$)
 * 28Sodium
 * β−2n ($26.001$)
 * 27Sodium
 * rowspan=3|30Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 20
 * rowspan=3|$197 ms$
 * rowspan=3|$99.87 %$
 * β− ($0.13 %$)
 * 30Sodium
 * rowspan=3|0+
 * rowspan=3|
 * rowspan=3|
 * β−n ($27.008$)
 * 29Sodium
 * β−2n ($30.9 ms$)
 * 28Sodium
 * rowspan=3|31Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 21
 * rowspan=3|$98 %$
 * rowspan=3|$2 %$
 * β−
 * 31Sodium
 * rowspan=3|(3/2−)
 * rowspan=3|
 * rowspan=3|
 * β−n ?
 * 30Sodium ?
 * β−2n ?
 * 29Sodium ?
 * rowspan=3|32Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 22
 * rowspan=3|$28.012$#
 * rowspan=3|$18.8 ms$
 * β−
 * 32Sodium
 * rowspan=3|0+
 * rowspan=3|
 * rowspan=3|
 * β−n ?
 * 31Sodium ?
 * β−2n ?
 * 30Sodium ?
 * 33Neon?
 * style="text-align:right" | 10
 * style="text-align:right" | 23
 * n ?
 * 32Neon
 * 7/2−#
 * rowspan=3|34Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 24
 * rowspan=3|$84.3 %$#
 * rowspan=3|$12 %$# [> $3.7 %$]
 * β− ?
 * 34Sodium
 * rowspan=3|0+
 * rowspan=3|
 * rowspan=3|
 * β−2n ?
 * 32Neon ?
 * β−n ?
 * 33Neon ?
 * β− ($29.02$)
 * 30Sodium
 * rowspan=3|0+
 * rowspan=3|
 * rowspan=3|
 * β−n ($14.7 ms$)
 * 29Sodium
 * β−2n ($68 %$)
 * 28Sodium
 * rowspan=3|31Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 21
 * rowspan=3|$28 %$
 * rowspan=3|$4 %$
 * β−
 * 31Sodium
 * rowspan=3|(3/2−)
 * rowspan=3|
 * rowspan=3|
 * β−n ?
 * 30Sodium ?
 * β−2n ?
 * 29Sodium ?
 * rowspan=3|32Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 22
 * rowspan=3|$30.025$#
 * rowspan=3|$7.22 ms$
 * β−
 * 32Sodium
 * rowspan=3|0+
 * rowspan=3|
 * rowspan=3|
 * β−n ?
 * 31Sodium ?
 * β−2n ?
 * 30Sodium ?
 * 33Neon?
 * style="text-align:right" | 10
 * style="text-align:right" | 23
 * n ?
 * 32Neon
 * 7/2−#
 * rowspan=3|34Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 24
 * rowspan=3|$78.1 %$#
 * rowspan=3|$13 %$# [> $8.9 %$]
 * β− ?
 * 34Sodium
 * rowspan=3|0+
 * rowspan=3|
 * rowspan=3|
 * β−2n ?
 * 32Neon ?
 * β−n ?
 * 33Neon ?
 * rowspan=3|34Neon
 * rowspan=3 style="text-align:right" | 10
 * rowspan=3 style="text-align:right" | 24
 * rowspan=3|$31.033$#
 * rowspan=3|$3.4 ms$# [> $32.04$]
 * β− ?
 * 34Sodium
 * rowspan=3|0+
 * rowspan=3|
 * rowspan=3|
 * β−2n ?
 * 32Neon ?
 * β−n ?
 * 33Neon ?
 * β−n ?
 * 33Neon ?


 * The isotopic composition refers to that in air.