{{위키데이터 속성 추적}}
자연계에 존재하는 [[네오디뮴]]의 [[동위 원소]]는 <sup>142</sup>Nd, <sup>143</sup>Nd, <sup>144</sup>Nd, <sup>145</sup>Nd, <sup>146</sup>Nd, <sup>148</sup>Nd, <sup>150</sup>Nd이 존재한다.

이들 중 <sup>144</sup>Nd, <sup>150</sup>Nd은 긴 반감기를 가지고 있는 방사성 동위 원소이다.

<sup>143</sup>Nd은 [[네오디뮴]]-[[사마륨]] 연대측정에 이용된다.

== 표 ==
{| class="wikitable" style="font-size:95%; white-space:nowrap"
! rowspan="2" | 핵자<br />수
! Z([[양성자|p]])
! N([[중성자|n]])
! &nbsp;<br />동위 원소 질량 (u)<br />&nbsp;
! rowspan="2" | 반감기<ref group="n">안정 동위 원소는 굵은체로 표기, 우주의 나이보다 반감기가 긴 동위 원소의 반감기는 굵은 흘림체로 표기</ref>
! rowspan="2" | 붕괴<br />방식<ref>http://www.nucleonica.net/unc.aspx</ref><ref group="n">약어:<br />ε: [[전자 포획]]<br />IT: [[이성질핵 전이]]</ref>
! rowspan="2" | 붕괴 생성<br />동위 원소<ref group="n">안정 동위 원소는 굵은 글씨로 표기</ref>
! rowspan="2" | 핵<br />스핀
! rowspan="2" | 자연계에 존재하는<br />동위 원소<br />범위<br />(몰 분율)
! rowspan="2" | 자연계에 존재하는<br />최대 범위<br />(몰 분율)
|-
! colspan="3" | 들뜬 에너지
|-
| <sup>124</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 64
| 123.95223(64)#
| 500# ms
|
|
| 0+
|
|
|-
| <sup>125</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 65
| 124.94888(43)#
| 600(150) ms
|
|
| 5/2(+#)
|
|
|-
| <sup>126</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 66
| 125.94322(43)#
| 1# s [>200 ns]
| β<sup>+</sup>
| <sup>126</sup>Pr
| 0+
|
|
|-
| rowspan=2|<sup>127</sup>Nd
| rowspan=2 style="text-align:right" | 60
| rowspan=2 style="text-align:right" | 67
| rowspan=2|126.94050(43)#
| rowspan=2|1.8(4) s
| β<sup>+</sup>
| <sup>127</sup>Pr
| rowspan=2|5/2+#
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup>, [[양성자 방출|p]] (드묾)
| <sup>126</sup>Ce
|-
| rowspan=2|<sup>128</sup>Nd
| rowspan=2 style="text-align:right" | 60
| rowspan=2 style="text-align:right" | 68
| rowspan=2|127.93539(21)#
| rowspan=2|5# s
| β<sup>+</sup>
| <sup>128</sup>Pr
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup>, p (드묾)
| <sup>127</sup>Ce
|-
| rowspan=2|<sup>129</sup>Nd
| rowspan=2 style="text-align:right" | 60
| rowspan=2 style="text-align:right" | 69
| rowspan=2|128.93319(22)#
| rowspan=2|4.9(2) s
| β<sup>+</sup>
| <sup>129</sup>Pr
| rowspan=2|5/2+#
| rowspan=2| 
| rowspan=2|
|-
| β<sup>+</sup>, p (드묾)
| <sup>128</sup>Ce
|-
| <sup>130</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 70
| 129.92851(3)
| 21(3) s
| β<sup>+</sup>
| <sup>130</sup>Pr
| 0+
|
|
|-
| rowspan=2|<sup>131</sup>Nd
| rowspan=2 style="text-align:right" | 60
| rowspan=2 style="text-align:right" | 71
| rowspan=2|130.92725(3)
| rowspan=2|33(3) s
| β<sup>+</sup>
| <sup>131</sup>Pr
| rowspan=2|(5/2)(+#)
| rowspan=2| 
| rowspan=2|
|-
| β<sup>+</sup>, p (드묾)
| <sup>130</sup>Ce
|-
| <sup>132</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 72
| 131.923321(26)
| 1.56(10) min
| β<sup>+</sup>
| <sup>132</sup>Pr
| 0+
|
|
|-
| <sup>133</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 73
| 132.92235(5)
| 70(10) s
| β<sup>+</sup>
| <sup>133</sup>Pr
| (7/2+)
|
|
|-
| style="text-indent:1em" | <sup>133m1</sup>Nd
| colspan="3" style="text-indent:2em" | 127.97(11) keV
| ~70 s
| β<sup>+</sup>
| <sup>133</sup>Pr
| (1/2)+
|
|
|-
| style="text-indent:1em" | <sup>133m2</sup>Nd
| colspan="3" style="text-indent:2em" | 176.10(10) keV
| ~300 ns
|
|
| (9/2-)
|
|
|-
| <sup>134</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 74
| 133.918790(13)
| 8.5(15) min
| β<sup>+</sup>
| <sup>134</sup>Pr
| 0+
|
|
|-
| style="text-indent:1em" | <sup>134m</sup>Nd
| colspan="3" style="text-indent:2em" | 2293.1(4) keV
| 410(30) µs
|
|
| (8)-
|
|
|-
| <sup>135</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 75
| 134.918181(21)
| 12.4(6) min
| β<sup>+</sup>
| <sup>135</sup>Pr
| 9/2(-)
|
|
|-
| style="text-indent:1em" | <sup>135m</sup>Nd
| colspan="3" style="text-indent:2em" | 65.0(2) keV
| 5.5(5) min
| β<sup>+</sup>
| <sup>135</sup>Pr
| (1/2+)
|
|
|-
| <sup>136</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 76
| 135.914976(13)
| 50.65(33) min
| β<sup>+</sup>
| <sup>136</sup>Pr
| 0+
|
|
|-
| <sup>137</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 77
| 136.914567(12)
| 38.5(15) min
| β<sup>+</sup>
| <sup>137</sup>Pr
| 1/2+
|
|
|-
| style="text-indent:1em" | <sup>137m</sup>Nd
| colspan="3" style="text-indent:2em" | 519.43(17) keV
| 1.60(15) s
| [[이성질핵 전이|IT]]
| <sup>137</sup>Nd
| (11/2-)
|
|
|-
| <sup>138</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 78
| 137.911950(13)
| 5.04(9) h
| β<sup>+</sup>
| <sup>138</sup>Pr
| 0+
|
|
|-
| style="text-indent:1em" | <sup>138m</sup>Nd
| colspan="3" style="text-indent:2em" | 3174.9(4) keV
| 410(50) ns
|
|
| (10+)
|
|
|-
| <sup>139</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 79
| 138.911978(28)
| 29.7(5) min
| β<sup>+</sup>
| <sup>139</sup>Pr
| 3/2+
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>139m1</sup>Nd
| rowspan=2 colspan="3" style="text-indent:2em" | 231.15(5) keV
| rowspan=2|5.50(20) h
| β<sup>+</sup> (88.2%)
| <sup>139</sup>Pr
| rowspan=2|11/2-
| rowspan=2|
| rowspan=2|
|-
| IT (11.8%)
| <sup>139</sup>Nd
|-
| style="text-indent:1em" | <sup>139m2</sup>Nd
| colspan="3" style="text-indent:2em" | 2570.9+X keV
| >=141 ns
|
|
|
|
|
|-
| <sup>140</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 80
| 139.90955(3)
| 3.37(2) d
| [[전자 포획|ε]]
| <sup>140</sup>Pr
| 0+
|
|
|-
| style="text-indent:1em" | <sup>140m</sup>Nd
| colspan="3" style="text-indent:2em" | 2221.4(1) keV
| 600(50) µs
|
|
| 7-
|
|
|-
| <sup>141</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 81
| 140.909610(4)
| 2.49(3) h
| β<sup>+</sup>
| '''<sup>141</sup>Pr'''
| 3/2+
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>141m</sup>Nd
| rowspan=2 colspan="3" style="text-indent:2em" | 756.51(5) keV
| rowspan=2|62.0(8) s
| IT (99.95%)
| <sup>141</sup>Nd
| rowspan=2|11/2-
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (0.05%)
| <sup>141</sup>Pr
|-
| <sup>142</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 82
| 141.9077233(25)
| colspan=3 align=center|'''안정'''<ref group="n">이론적으로 [[자발 핵분열]]을 할 수 있다.</ref>
| 0+
| 0.272(5)
| 0.2680-0.2730
|-
| <sup>143</sup>Nd<ref group="n" name="FP">[[핵분열 생성물]]</ref><ref group="n">[[사마륨]]-[[네오디뮴]] 연대 측정에 이용</ref>
| style="text-align:right" | 60
| style="text-align:right" | 83
| 142.9098143(25)
| colspan=3 align=center|'''안정'''<ref group="n">[[알파 붕괴]]를 통해 <sup>139</sup>Ce으로 붕괴할 수 있다.</ref>
| 7/2-
| 0.122(2)
| 0.1212-0.1232
|-
| <sup>144</sup>Nd<ref group="n" name="FP" /><ref group="n" name="PN">[[태양계]] 초창기부터 존재해 왔었던 방사성 핵자</ref>
| style="text-align:right" | 60
| style="text-align:right" | 84
| 143.9100873(25)
| '''2.29(16)×10<sup>15</sup> a'''
| [[알파 붕괴|α]]
| '''<sup>140</sup>Ce'''
| 0+
| 0.238(3)
| 0.2379-0.2397
|-
| <sup>145</sup>Nd<ref group="n" name="FP" />
| style="text-align:right" | 60
| style="text-align:right" | 85
| 144.9125736(25)
| colspan=3 align=center|'''관찰 안정'''<ref group="n">α 붕괴를 통해 <sup>141</sup>Ce으로 붕괴할 수 있으며 반감기는 7.3×10<sup>21</sup> 년을 초과할 것으로 예상된다.</ref>
| 7/2-
| 0.083(1)
| 0.0823-0.0835
|-
| <sup>146</sup>Nd<ref group="n" name="FP" />
| style="text-align:right" | 60
| style="text-align:right" | 86
| 145.9131169(25)
| colspan=3 align=center|'''안정'''<ref group="n">알파 붕괴를 통해 '''<sup>142</sup>Ce'''으로 붕괴할 수 있다.</ref>
| 0+
| 0.172(3)
| 0.1706-0.1735
|-
| <sup>147</sup>Nd<ref group="n" name="FP" />
| style="text-align:right" | 60
| style="text-align:right" | 87
| 146.9161004(25)
| 10.98(1) d
| β<sup>-</sup>
| <sup>147</sup>Pm
| 5/2-
|
|
|-
| <sup>148</sup>Nd<ref group="n" name="FP" />
| style="text-align:right" | 60
| style="text-align:right" | 88
| 147.916893(3)
| colspan=3 align=center|'''관찰 안정'''<ref group="n">이론상으로 알파 붕괴를 통해 <sup>144</sup>Ce으로 붕괴할 수 있으며 반감기는 3.8×10<sup>20</sup> 년을 초과할 것으로 예상된다.</ref>
| 0+
| 0.057(1)
| 0.0566-0.0578
|-
| <sup>149</sup>Nd<ref group="n" name="FP" />
| style="text-align:right" | 60
| style="text-align:right" | 89
| 148.920149(3)
| 1.728(1) h
| β<sup>-</sup>
| <sup>148</sup>Pm
| 5/2-
|
|
|-
| <sup>150</sup>Nd<ref group="n" name="FP" /><ref group="n" name="PN" />
| style="text-align:right" | 60
| style="text-align:right" | 90
| 149.920891(3)
| '''6.7(7)×10<sup>18</sup> a'''
| β<sup>-</sup>β<sup>-</sup>
| '''<sup>150</sup>Sm'''
| 0+
| 0.056(2)
| 0.0553-0.0569
|-
| <sup>151</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 91
| 150.923829(3)
| 12.44(7) min
| β<sup>-</sup>
| <sup>151</sup>Pm
| 3/2+
|
|
|-
| <sup>152</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 92
| 151.924682(26)
| 11.4(2) min
| β<sup>-</sup>
| <sup>152</sup>Pm
| 0+
|
|
|-
| <sup>153</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 93
| 152.927698(29)
| 31.6(10) s
| β<sup>-</sup>
| <sup>153</sup>Pm
| (3/2)-
|
|
|-
| <sup>154</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 94
| 153.92948(12)
| 25.9(2) s
| β<sup>-</sup>
| <sup>154</sup>Pm
| 0+
|
|
|-
| style="text-indent:1em" | <sup>154m1</sup>Nd
| colspan="3" style="text-indent:2em" | 480(150)# keV
| 1.3(5) µs
|
|
|
|
|
|-
| style="text-indent:1em" | <sup>154m2</sup>Nd
| colspan="3" style="text-indent:2em" | 1349(10) keV
| >1 µs
|
|
| (5-)
|
|
|-
| <sup>155</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 95
| 154.93293(16)#
| 8.9(2) s
| β<sup>-</sup>
| <sup>155</sup>Pm
| 3/2-#
|
|
|-
| <sup>156</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 96
| 155.93502(22)
| 5.49(7) s
| β<sup>-</sup>
| <sup>156</sup>Pm
| 0+
|
|
|-
| style="text-indent:1em" | <sup>156m</sup>Nd
| colspan="3" style="text-indent:2em" | 1432(5) keV
| 135 ns
|
|
| 5-
|
|
|-
| <sup>157</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 97
| 156.93903(21)#
| 2# s [>300 ns]
| β<sup>-</sup>
| <sup>157</sup>Pm
| 5/2-#
|
|
|-
| <sup>158</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 98
| 157.94160(43)#
| 700# ms [>300 ns]
| β<sup>-</sup>
| <sup>158</sup>Pm
| 0+
|
|
|-
| <sup>159</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 99
| 158.94609(54)#
| 500# ms
| β<sup>-</sup>
| <sup>159</sup>Pm
| 7/2+#
|
|
|-
| <sup>160</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 100
| 159.94909(64)#
| 300# ms
| β<sup>-</sup>
| <sup>160</sup>Pm
| 0+
|
|
|-
| <sup>161</sup>Nd
| style="text-align:right" | 60
| style="text-align:right" | 101
| 160.95388(75)#
| 200# ms
| β<sup>-</sup>
| <sup>161</sup>Pm
| 1/2-#
|
|
|}
{{각주|group="n"}}

== 각주 ==
{{각주}}

{{동위 원소 색인}}

[[분류:네오디뮴|동위 원소]]
[[분류:네오디뮴 동위 원소| ]]
[[분류:원소별 동위 원소 목록]]