{{위키데이터 속성 추적}}
자연계에서 존재하는 [[프라세오디뮴]]의 안정 동위 원소는 한 종으로 <sup>141</sup>Pr이 100% 존재한다.

<sup>143</sup>Pr은 반감기가 13.57일로 프라세오디뮴의 방사성 핵분열 생성물들 중 가장 [[반감기]]가 길다.

== 목록 ==
{| 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
! 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, 우주의 나이보다 반감기가 긴 동위 원소는 굵은 흘림체로 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
|-
| rowspan=3|<sup>121</sup>Pr
| rowspan=3 style="text-align:right" | 59
| rowspan=3 style="text-align:right" | 62
| rowspan=3|120.95536(75)#
| rowspan=3|600(300) ms
| [[양성자 방출|p]]
| <sup>120</sup>Ce
| rowspan=3|(3/2-)
| rowspan=3|
| rowspan=3|
|-
| [[베타 붕괴|β<sup>+</sup>]] (드묾)
| <sup>121</sup>Ce
|-
| β<sup>+</sup>, p (드묾)
| <sup>120</sup>La
|-
| <sup>122</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 63
| 121.95181(54)#
| 500# ms
| β<sup>+</sup>
| <sup>122</sup>Ce
|
|
|
|-
| <sup>123</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 64
| 122.94596(64)#
| 800# ms
| β<sup>+</sup>
| <sup>123</sup>Ce
| 3/2+#
|
|
|-
| rowspan=2|<sup>124</sup>Pr
| rowspan=2 style="text-align:right" | 59
| rowspan=2 style="text-align:right" | 65
| rowspan=2|123.94296(64)#
| rowspan=2|1.2(2) s
| β<sup>+</sup>
| <sup>124</sup>Ce
| rowspan=2|
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup>, p (드묾)
| <sup>123</sup>La
|-
| rowspan=2|<sup>125</sup>Pr
| rowspan=2 style="text-align:right" | 59
| rowspan=2 style="text-align:right" | 66
| rowspan=2|124.93783(43)#
| rowspan=2|3.3(7) s
| β<sup>+</sup>
| <sup>125</sup>Ce
| rowspan=2|3/2+#
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup>, p (드묾)
| <sup>124</sup>La
|-
| rowspan=2|<sup>126</sup>Pr
| rowspan=2 style="text-align:right" | 59
| rowspan=2 style="text-align:right" | 67
| rowspan=2|125.93531(21)#
| rowspan=2|3.12(18) s
| β<sup>+</sup>
| <sup>126</sup>Ce
| rowspan=2|(4,5,6)
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup>, p (드묾)
| <sup>125</sup>La
|-
| <sup>127</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 68
| 126.93083(21)#
| 4.2(3) s
| β<sup>+</sup>
| <sup>127</sup>Ce
| 3/2+#
|
|
|-
| style="text-indent:1em" | <sup>127m</sup>Pr
| colspan="3" style="text-indent:2em" | 600(200)# keV
| 50# ms
|
|
| 11/2-
|
|
|-
| rowspan=2|<sup>128</sup>Pr
| rowspan=2 style="text-align:right" | 59
| rowspan=2 style="text-align:right" | 69
| rowspan=2|127.92879(3)
| rowspan=2|2.84(9) s
| β<sup>+</sup>
| <sup>128</sup>Ce
| rowspan=2|(3+)
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup>, p (드묾)
| <sup>127</sup>La
|-
| <sup>129</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 70
| 128.92510(3)
| 32(3) s
| β<sup>+</sup>
| <sup>129</sup>Ce
| (11/2-)
|
|
|-
| style="text-indent:1em" | <sup>129m</sup>Pr
| colspan="3" style="text-indent:2em" | 382.7(5) keV
| 1# ms
| β<sup>+</sup>
| <sup>129</sup>Ce
| (11/2-)
|
|
|-
| <sup>130</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 71
| 129.92359(7)
| 40.0(4) s
| β<sup>+</sup>
| <sup>130</sup>Ce
| (6,7)(+#)
|
|
|-
| style="text-indent:1em" | <sup>130m</sup>Pr
| colspan="3" style="text-indent:2em" | 100(100)# keV
| 10# s
|
|
| 2+#
|
|
|-
| <sup>131</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 72
| 130.92026(6)
| 1.50(3) min
| β<sup>+</sup>
| <sup>131</sup>Ce
| (3/2+)
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>131m</sup>Pr
| rowspan=2 colspan="3" style="text-indent:2em" | 152.4(2) keV
| rowspan=2|5.7(2) s
| [[이성질핵 전이|IT]] (96.4%)
| <sup>131</sup>Pr
| rowspan=2|(11/2-)
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (3.59%)
| <sup>131</sup>Ce
|-
| <sup>132</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 73
| 131.91926(6)
| 1.49(11) min
| β<sup>+</sup>
| <sup>132</sup>Ce
| (2+)
|
|
|-
| style="text-indent:1em" | <sup>132m</sup>Pr
| colspan="3" style="text-indent:2em" | 0(100)# keV
| 20# s
| β<sup>+</sup>
| <sup>132</sup>Ce
| (5+)
|
|
|-
| <sup>133</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 74
| 132.916331(13)
| 6.5(3) min
| β<sup>+</sup>
| <sup>133</sup>Ce
| (3/2+)
|
|
|-
| style="text-indent:1em" | <sup>133m</sup>Pr
| colspan="3" style="text-indent:2em" | 192.05(14) keV
| 1.1(2) µs
|
|
| (11/2-)
|
|
|-
| <sup>134</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 75
| 133.91571(4)
| ~11 min
| β<sup>+</sup>
| <sup>134</sup>Ce
| (5-)
|
|
|-
| style="text-indent:1em" | <sup>134m</sup>Pr
| colspan="3" style="text-indent:2em" | 0(100)# keV
| 17(2) min
| β<sup>+</sup>
| <sup>134</sup>Ce
| 2-
|
|
|-
| <sup>135</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 76
| 134.913112(13)
| 24(2) min
| β<sup>+</sup>
| <sup>135</sup>Ce
| 3/2(+)
|
|
|-
| style="text-indent:1em" | <sup>135m</sup>Pr
| colspan="3" style="text-indent:2em" | 358.06(6) keV
| 105(10) µs
|
|
| (11/2-)
|
|
|-
| <sup>136</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 77
| 135.912692(13)
| 13.1(1) min
| β<sup>+</sup>
| '''<sup>136</sup>Ce'''
| 2+
|
|
|-
| <sup>137</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 78
| 136.910705(13)
| 1.28(3) h
| β<sup>+</sup>
| <sup>137</sup>Ce
| 5/2+
|
|
|-
| style="text-indent:1em" | <sup>137m</sup>Pr
| colspan="3" style="text-indent:2em" | 561.22(23) keV
| 2.66(7) µs
|
|
| 11/2-
|
|
|-
| <sup>138</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 79
| 137.910755(15)
| 1.45(5) min
| β<sup>+</sup>
| '''<sup>138</sup>Ce'''
| 1+
|
|
|-
| style="text-indent:1em" | <sup>138m</sup>Pr
| colspan="3" style="text-indent:2em" | 348(23) keV
| 2.12(4) h
| β<sup>+</sup>
| <sup>138</sup>Ce
| 7-
|
|
|-
| <sup>139</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 80
| 138.908938(8)
| 4.41(4) h
| β<sup>+</sup>
| <sup>139</sup>Ce
| 5/2+
|
|
|-
| <sup>140</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 81
| 139.909076(7)
| 3.39(1) min
| β<sup>+</sup>
| '''<sup>140</sup>Ce'''
| 1+
|
|
|-
| style="text-indent:1em" | <sup>140m1</sup>Pr
| colspan="3" style="text-indent:2em" | 127.5(3) keV
| 0.35(2) µs
|
|
| 5+
|
|
|-
| style="text-indent:1em" | <sup>140m2</sup>Pr
| colspan="3" style="text-indent:2em" | 763.3(7) keV
| 3.05(20) µs
|
|
| (8)-
|
|
|-
| <sup>141</sup>Pr<ref group="n" name="FP">[[핵분열 생성물]]</ref>
| style="text-align:right" | 59
| style="text-align:right" | 82
| 140.9076528(26)
| colspan=3 align=center|''' 안정 '''<ref group="n">이론상으로 [[자발 핵분열]]을 할 수 있다.</ref>
| 5/2+
| 1.0000
|
|-
| rowspan=2|<sup>142</sup>Pr
| rowspan=2 style="text-align:right" | 59
| rowspan=2 style="text-align:right" | 83
| rowspan=2|141.9100448(26)
| rowspan=2|19.12(4) h
| β<sup>-</sup> (99.98%)
| '''<sup>142</sup>Nd'''
| rowspan=2|2-
| rowspan=2|
| rowspan=2|
|-
| [[전자 포획|ε]] (0.0164%)
| '''<sup>142</sup>Ce'''
|-
| style="text-indent:1em" | <sup>142m</sup>Pr
| colspan="3" style="text-indent:2em" | 3.694(3) keV
| 14.6(5) min
| IT
| <sup>142</sup>Pr
| 5-
|
|
|-
| <sup>143</sup>Pr<ref group="n" name="FP" />
| style="text-align:right" | 59
| style="text-align:right" | 84
| 142.9108169(28)
| 13.57(2) d
| β<sup>-</sup>
| '''<sup>143</sup>Nd'''
| 7/2+
|
|
|-
| <sup>144</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 85
| 143.913305(4)
| 17.28(5) min
| β<sup>-</sup>
| '''''<sup>144</sup>Nd'''''
| 0-
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>144m</sup>Pr
| rowspan=2 colspan="3" style="text-indent:2em" | 59.03(3) keV
| rowspan=2|7.2(3) min
| IT (99.93%)
| <sup>144</sup>Pr
| rowspan=2|3-
| rowspan=2|
| rowspan=2|
|-
| β<sup>-</sup> (0.07%)
| '''''<sup>144</sup>Nd'''''
|-
| <sup>145</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 86
| 144.914512(8)
| 5.984(10) h
| β<sup>-</sup>
| '''<sup>145</sup>Nd'''
| 7/2+
|
|
|-
| <sup>146</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 87
| 145.91764(7)
| 24.15(18) min
| β<sup>-</sup>
| '''<sup>146</sup>Nd'''
| (2)-
|
|
|-
| <sup>147</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 88
| 146.918996(25)
| 13.4(4) min
| β<sup>-</sup>
| <sup>147</sup>Nd
| (3/2+)
|
|
|-
| <sup>148</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 89
| 147.922135(28)
| 2.29(2) min
| β<sup>-</sup>
| '''<sup>148</sup>Nd'''
| 1-
|
|
|-
| style="text-indent:1em" | <sup>148m</sup>Pr
| colspan="3" style="text-indent:2em" | 50(30)# keV
| 2.01(7) min
| β<sup>-</sup>
| '''<sup>148</sup>Nd'''
| (4)
|
|
|-
| <sup>149</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 90
| 148.92372(9)
| 2.26(7) min
| β<sup>-</sup>
| <sup>149</sup>Nd
| (5/2+)
|
|
|-
| <sup>150</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 91
| 149.926673(28)
| 6.19(16) s
| β<sup>-</sup>
| '''''<sup>150</sup>Nd'''''
| (1)-
|
|
|-
| <sup>151</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 92
| 150.928319(25)
| 18.90(7) s
| β<sup>-</sup>
| <sup>151</sup>Nd
| (3/2)(-#)
|
|
|-
| <sup>152</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 93
| 151.93150(13)
| 3.63(12) s
| β<sup>-</sup>
| <sup>152</sup>Nd
| 4+
|
|
|-
| <sup>153</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 94
| 152.93384(11)
| 4.28(11) s
| β<sup>-</sup>
| <sup>153</sup>Nd
| 5/2-#
|
|
|-
| <sup>154</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 95
| 153.93752(16)
| 2.3(1) s
| β<sup>-</sup>
| <sup>154</sup>Nd
| (3+,2+)
|
|
|-
| <sup>155</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 96
| 154.94012(32)#
| 1# s [>300 ns]
| β<sup>-</sup>
| <sup>155</sup>Nd
| 5/2-#
|
|
|-
| <sup>156</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 97
| 155.94427(43)#
| 500# ms [>300 ns]
| β<sup>-</sup>
| <sup>156</sup>Nd
|
|
|
|-
| <sup>157</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 98
| 156.94743(43)#
| 300# ms
| β<sup>-</sup>
| <sup>157</sup>Nd
| 5/2-#
|
|
|-
| <sup>158</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 99
| 157.95198(64)#
| 200# ms
| β<sup>-</sup>
| <sup>158</sup>Nd
|
|
|
|-
| <sup>159</sup>Pr
| style="text-align:right" | 59
| style="text-align:right" | 100
| 158.95550(75)#
| 100# ms
| β<sup>-</sup>
| <sup>159</sup>Nd
| 5/2-#
|
|
|}
<references group="n" />

== 각주 ==
<references/>

{{동위 원소 색인}}

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