United States Nuclear Regulatory Commission - Protecting People and the Environment

Radionuclides

[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Actinium-224
Actinium-225
Actinium-226
Actinium-227
Actinium-228
Aluminum-26
Americium-237
Americium-238
Americium-239
Americium-240
Americium-241
Americium-242
Americium-242m
Americium-243
Americium-244
Americium-244m
Americium-245
Americium-246

Americium-246m
Antimony-115
Antimony-116
Antimony-116m
Antimony-117
Antimony-118m
Antimony-119
Antimony-120 (16 min)
Antimony-120 (5.76 d)
Antimony-122
Antimony-124
Antimony-124m
Antimony-125
Antimony-126
Antimony-126m
Antimony-127
Antimony-128 (10.4 min)
Antimony-128 (9.01 h)

Antimony-129
Antimony-130
Antimony-131
Argon-37
Argon-39
Argon-41
Arsenic-69
Arsenic-70
Arsenic-71
Arsenic-72
Arsenic-73
Arsenic-74
Arsenic-76
Arsenic-77
Arsenic-78
Astatine-207
Astatine-211


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Barium-126
Barium-128
Barium-131
Barium-131m
Barium-133
Barium-133m
Barium-135m
Barium-139
Barium-140
Barium-141
Barium-142
Berkelium-245
Berkelium-246
Berkelium-247
Berkelium-249
Berkelium-250
Beryllium-7
Beryllium-10
Bismuth-200
Bismuth-201
Bismuth-202
Bismuth-203
Bismuth-205
Bismuth-206
Bismuth-207
Bismuth-210
Bismuth-210m
Bismuth-212
Bismuth-213
Bismuth-214
Bromine-74
Bromine-74m
Bromine-75
Bromine-76
Bromine-77
Bromine-80
Bromine-80m
Bromine-82
Bromine-83
Bromine-84


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Cadmium-104
Cadmium-107
Cadmium-109
Cadmium-113
Cadmium-113m
Cadmium-115
Cadmium-115m
Cadmium-117
Cadmium-117m
Calcium-41
Calcium-45
Calcium-47
Californium-244
Californium-246
Californium-248
Californium-249
Californium-250
Californium-251
Californium-252
Californium-253
Californium-254
Carbon-11
Carbon-14
Cerium-134
Cerium-135
Cerium-137
Cerium-137m
Cerium-139
Cerium-141
Cerium-143
Cerium-144
Cesium-125
Cesium-127
Cesium-129
Cesium-130
Cesium-131
Cesium-132
Cesium-134
Cesium-134m
Cesium-135
Cesium-135m
Cesium-136
Cesium-137
Cesium-138
Chlorine-36
Chlorine-38
Chlorine-39
Chromium-48
Chromium-49
Chromium-51
Cobalt-55
Cobalt-56
Cobalt-57
Cobalt-58
Cobalt-58m
Cobalt-60
Cobalt-60m
Cobalt-61
Cobalt-62m
Copper-60
Copper-61
Copper-64
Copper-67
Curium-238
Curium-240
Curium-241
Curium-242
Curium-243
Curium-244
Curium-245
Curium-246
Curium-247
Curium-248
Curium-249
Curium-250


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Dysprosium-155
Dysprosium-157
Dysprosium-159
Dysprosium-165
Dysprosium-166


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Einsteinium-250
Einsteinium-251
Einsteinium-253
Einsteinium-254
Einsteinium-254m
Erbium-161
Erbium-165
Erbium-169
Erbium-171
Erbium-172
Europium-145
Europium-146
Europium-147
Europium-148
Europium-149
Europium-150 (12.62 h)
Europium-150 (34.2 y)
Europium-152
Europium-152m
Europium-154
Europium-155
Europium-156
Europium-157
Europium-158


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Fermium-252
Fermium-253
Fermium-254
Fermium-255
Fermium-257
Fluorine-18
Francium-223
Francium-222


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Gadolinium-145
Gadolinium-146
Gadolinium-147
Gadolinium-148
Gadolinium-149
Gadolinium-151
Gadolinium-152
Gadolinium-153
Gadolinium-159
Gallium-65
Gallium-66
Gallium-67
Gallium-68
Gallium-70
Gallium-72
Gallium-73
Germanium-66
Germanium-67
Germanium-68
Germanium-69
Germanium-71
Germanium-75
Germanium-77
Germanium-78
Gold-193
Gold-194
Gold-195
Gold-198
Gold-198m
Gold-199
Gold-200
Gold-200m
Gold-201


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Hafnium-170
Hafnium-172
Hafnium-173
Hafnium-175
Hafnium-177m
Hafnium-178m
Hafnium-179m
Hafnium-180m
Hafnium-181
Hafnium-182
Hafnium-182m
Hafnium-183
Hafnium-184
Holmium-155
Holmium-157
Holmium-159
Holmium-161
Holmium-162
Holmium-162m
Holmium-164
Holmium-164m
Holmium-166
Holmium-166m
Holmium-167
Hydrogen-3


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Indium-109
Indium-110 (4.9 h)
Indium-110 (69.1 min)
Indium-111
Indium-112
Indium-113m
Indium-114m
Indium-115
Indium-115m
Indium-116m
Indium-117
Indium-117m
Indium-119m
Iodine-120
Iodine-120m
Iodine-121
Iodine-123
Iodine-124
Iodine-125
Iodine-126
Iodine-128
Iodine-129
Iodine-130
Iodine-131
Iodine-132
Iodine-132m
Iodine-133
Iodine-134
Iodine-135
Iridium-182
Iridium-184
Iridium-185
Iridium-186
Iridium-187
Iridium-188
Iridium-189
Iridium-190
Iridium-190m
Iridium-192
Iridium-192m
Iridium-194
Iridium-194m
Iridium-195
Iridium-195m
Iron-52
Iron-55
Iron-59
Iron-60


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Krypton-74
Krypton-76
Krypton-77
Krypton-79
Krypton-81
Krypton-83m
Krypton-85
Krypton-85m
Krypton-87
Krypton-88


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Lanthanum-131
Lanthanum-132
Lanthanum-135
Lanthanum-137
Lanthanum-138
Lanthanum-140
Lanthanum-141
Lanthanum-142
Lanthanum-143
Lead-195m
Lead-198
Lead-199
Lead-200
Lead-201
Lead-202
Lead-202m
Lead-203
Lead-205
Lead-209
Lead-210
Lead-211
Lead-212
Lead-214
Lutetium-169
Lutetium-170
Lutetium-171
Lutetium-172
Lutetium-173
Lutetium-174
Lutetium-174m
Lutetium-176
Lutetium-176m
Lutetium-177
Lutetium-177m
Lutetium-178
Lutetium-178m
Lutetium-179


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Magnesium-28
Manganese-51
Manganese-52
Manganese-52m
Manganese-53
Manganese-54
Manganese-56
Mendelevium-257
Mendelevium-258
Mercury-193
Mercury-193m
Mercury-194
Mercury-195
Mercury-195m
Mercury-197
Mercury-197m
Mercury-199m
Mercury-203
Molybdenum-90
Molybdenum-93
Molybdenum-93m
Molybdenum-99
Molybdenum-101


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Neodymium-136
Neodymium-138
Neodymium-139
Neodymium-139m
Neodymium-141
Neodymium-147
Neodymium-149
Neodymium-151
Neptunium-232
Neptunium-233
Neptunium-234
Neptunium-235
Neptunium-236 (1.15E+5 y)
Neptunium-236m (22.5 h)
Neptunium-237
Neptunium-238
Neptunium-239
Neptunium-240
Nickel-56
Nickel-57
Nickel-59
Nickel-63
Nickel-65
Nickel-66
Niobium-88
Niobium-89 (122 min)
Niobium-89m (66 min)
Niobium-90
Niobium-93m
Niobium-94
Niobium-95
Niobium-95m
Niobium-96
Niobium-97
Niobium-98
Nitrogen-13


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Osmium-180
Osmium-181
Osmium-182
Osmium-185
Osmium-189m
Osmium-191
Osmium-191m
Osmium-193
Osmium-194
Oxygen-15


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Palladium-100
Palladium-101
Palladium-103
Palladium-107
Palladium-109
Phosphorus-32
Phosphorus-33
Platinum-186
Platinum-188
Platinum-189
Platinum-191
Platinum-193
Platinum-193m
Platinum-195m
Platinum-197
Platinum-197m
Platinum-199
Platinum-200
Plutonium-234
Plutonium-235
Plutonium-236
Plutonium-237
Plutonium-238
Plutonium-239
Plutonium-240
Plutonium-241
Plutonium-242
Plutonium-243
Plutonium-244
Plutonium-245
Plutonium-246
Polonium-203
Polonium-205
Polonium-207
Polonium-210
Potassium-40
Potassium-42
Potassium-43
Potassium-44
Potassium-45
Praseodymium-136
Praseodymium-137
Praseodymium-138m
Praseodymium-139
Praseodymium-142
Praseodymium-142m
Praseodymium-143
Praseodymium-144
Praseodymium-145
Praseodymium-147
Promethium-141
Promethium-143
Promethium-144
Promethium-145
Promethium-146
Promethium-147
Promethium-148
Promethium-148m
Promethium-149
Promethium-150
Promethium-151
Protactinium-227
Protactinium-228
Protactinium-230
Protactinium-231
Protactinium-232
Protactinium-233
Protactinium-234


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Radium-223
Radium-224
Radium-225
Radium-226
Radium-227
Radium-228
Radon-220
Radon-222
Rhenium-177
Rhenium-178
Rhenium-181
Rhenium-182 (12.7 h)
Rhenium-182 (64.0 h)
Rhenium-184
Rhenium-184m
Rhenium-186
Rhenium-186m
Rhenium-187
Rhenium-188
Rhenium-188m
Rhenium-189
Rhodium-99
Rhodium-99m
Rhodium-100
Rhodium-101
Rhodium-101m
Rhodium-102
Rhodium-102m
Rhodium-103m
Rhodium-105
Rhodium-106m
Rhodium-107
Rubidium-79
Rubidium-81
Rubidium-81m
Rubidium-82m
Rubidium-83
Rubidium-84
Rubidium-86
Rubidium-87
Rubidium-88
Rubidium-89
Ruthenium-94
Ruthenium-97
Ruthenium-103
Ruthenium-105
Ruthenium-106


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Samarium-141
Samarium-141m
Samarium-142
Samarium-145
Samarium-146
Samarium-147
Samarium-151
Samarium-153
Samarium-155
Samarium-156
Scandium-43
Scandium-44
Scandium-44m
Scandium-46
Scandium-47
Scandium-48
Scandium-49
Selenium-70
Selenium-73
Selenium-73m
Selenium-75
Selenium-79
Selenium-81
Selenium-81m
Selenium-83
Silicon-31
Silicon-32
Silver-102
Silver-103
Silver-104
Silver-104m
Silver-105
Silver-106
Silver-106m
Silver-108m
Silver-110m
Silver-111
Silver-112
Silver-115
Sodium-22
Sodium-24
Strontium-80
Strontium-81
Strontium-82
Strontium-83
Strontium-85
Strontium-85m
Strontium-87m
Strontium-89
Strontium-90
Strontium-91
Strontium-92
Sulfur-35


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Tantalum-172
Tantalum-173
Tantalum-174
Tantalum-175
Tantalum-176
Tantalum-177
Tantalum-178
Tantalum-179
Tantalum-180
Tantalum-180m
Tantalum-182
Tantalum-182m
Tantalum-183
Tantalum-184
Tantalum-185
Tantalum-186
Technetium-93
Technetium-93m
Technetium-94
Technetium-94m
Technetium-95
Technetium-95m
Technetium-96
Technetium-96m
Technetium-97
Technetium-97m
Technetium-98
Technetium-99
Technetium-99m
Technetium-101
Technetium-104
Tellurium-116
Tellurium-121
Tellurium-121m
Tellurium-123
Tellurium-123m
Tellurium-125m

Tellurium-127
Tellurium-127m
Tellurium-129
Tellurium-129m
Tellurium-131
Tellurium-131m
Tellurium-132
Tellurium-133
Tellurium-133m
Tellurium-134
Terbium-147
Terbium-149
Terbium-150
Terbium-151
Terbium-153
Terbium-154
Terbium-155
Terbium-156
Terbium-156m (5.0 h)
Terbium-156m (24.4 h)
Terbium-157
Terbium-158
Terbium-160
Terbium-161
Thallium-194
Thallium-194m
Thallium-195
Thallium-197
Thallium-198
Thallium-198m
Thallium-199
Thallium-200
Thallium-201
Thallium-202
Thallium-204
Thorium-226
Thorium-227

Thorium-228
Thorium-229
Thorium-230
Thorium-231
Thorium-232
Thorium-234
Thulium-162
Thulium-166
Thulium-167
Thulium-170
Thulium-171
Thulium-172
Thulium-173
Thulium-175
Tin-110
Tin-111
Tin-113
Tin-117m
Tin-119m
Tin-121
Tin-121m
Tin-123
Tin-123m
Tin-125
Tin-126
Tin-127
Tin-128
Titanium-44
Titanium-45
Tungsten-176
Tungsten-177
Tungsten-178
Tungsten-179
Tungsten-181
Tungsten-185
Tungsten-187
Tungsten-188


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Uranium-230
Uranium-231
Uranium-232
Uranium-233
Uranium 234
Uranium-235
Uranium-236
Uranium-237
Uranium-238
Uranium-239
Uranium-240
Uranium-natural


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Vanadium-47 Vanadium-48 Vanadium-49


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Xenon-120
Xenon-121
Xenon-122
Xenon-123
Xenon-125
Xenon-127
Xenon-129m
Xenon-131m
Xenon-133
Xenon-133m
Xenon-135
Xenon-135m
Xenon-138


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Ytterbium-162
Ytterbium-166
Ytterbium-167
Ytterbium-169
Ytterbium-175
Ytterbium-177
Ytterbium-178
Yttrium-86
Yttrium-86m
Yttrium-87
Yttrium-88
Yttrium-90
Yttrium-90m
Yttrium-91
Yttrium-91m
Yttrium-92
Yttrium-93
Yttrium-94
Yttrium-95


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Zinc-62
Zinc-63
Zinc-65
Zinc-69
Zinc-69m
Zinc-71m
Zinc-72
Zirconium-86
Zirconium-88
Zirconium-89
Zirconium-93
Zirconium-95
Zirconium-97


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N |
O | P | Q | R | S | T | U | V | W | X | Y | Z | Unlisted ]
Unlisted
Page Last Reviewed/Updated Thursday, July 10, 2014