A stable isotope is a form of an element which is not radioactive.

All elements from hydrogen to bismuth come in both stable and unstable forms. All elements heavier than bismuth are only found in radioactive isotopes.

Elements 1-15

• Hydrogen-1
• Hydrogen-2
• Helium-3
• Helium-4
• Lithium-6
• Lithium-7
• Beryllium-9
• Boron-10
• Boron-11
• Carbon-12
• Carbon-13
• Nitrogen-14
• Nitrogen-15
• Oxygen-16
• Oxygen-17
• Oxygen-18
• Fluorine-19
• Neon-20
• Neon-21
• Neon-22
• Sodium-23
• Magnesium-24
• Magnesium-25
• Magnesium-26
• Aluminium-27
• Silicon-28
• Silicon-29
• Silicon-30
• Phosphorus-31

Elements 16-30

• Sulfur-32
• Sulfur-33
• Sulfur-34
• Sulfur-36
• Chlorine-35
• Chlorine-37
• Argon-36
• Argon-38
• Argon-40
• Potassium-39
• Potassium-40
• Potassium-41
• Calcium-40
• Calcium-42
• Calcium-43
• Calcium-44
• Calcium-46
• Calcium-48
• Scandium-45
• Titanium-46
• Titanium-47
• Titanium-48
• Titanium-49
• Titanium-50
• Vanadium-50
• Vanadium-51
• Chromium-50
• Chromium-52
• Chromium-53
• Chromium-54
• Manganese-55
• Iron-54
• Iron-56
• Iron-57
• Iron-58
• Cobalt-59
• Nickel-58
• Nickel-60
• Nickel-61
• Nickel-62
• Nickel-64
• Copper-63
• Copper-65
• Zinc-64
• Zinc-66
• Zinc-67
• Zinc-68
• Zinc-70

Elements 31-45

• Gallium-69
• Gallium-71
• Germanium-70
• Germanium-72
• Germanium-73
• Germanium-74
• Germanium-76
• Arsenic-75
• Selenium-74
• Selenium-76
• Selenium-77
• Selenium-78
• Selenium-80
• Selenium-82
• Bromine-79
• Bromine-81
• Krypton-78
• Krypton-80
• Krypton-82
• Krypton-83
• Krypton-84
• Krypton-86
• Rubidium-85
• Rubidium-87
• Strontium-84
• Strontium-86
• Strontium-87
• Strontium-88
• Yttrium-89
• Zirconium-90
• Zirconium-91
• Zirconium-92
• Zirconium-94
• Zirconium-96
• Niobium-93
• Molybdenum-92
• Molybdenum-94
• Molybdenum-95
• Molybdenum-96
• Molybdenum-97
• Molybdenum-98
• Molybdenum-100
• Technetium - No stable isotopes
• Ruthenium-96
• Ruthenium-98
• Ruthenium-99
• Ruthenium-100
• Ruthenium-101
• Ruthenium-102
• Ruthenium-104
• Rhodium-103

Elements 46-60

• Palladium-102
• Palladium-104
• Palladium-105
• Palladium-106
• Palladium-108
• Palladium-110
• Silver-107
• Silver-109
• Cadmium-106
• Cadmium-108
• Cadmium-110
• Cadmium-111
• Cadmium-112
• Cadmium-113
• Cadmium-114
• Cadmium-116
• Indium-113
• Indium-115
• Tin-112
• Tin-114
• Tin-115
• Tin-116
• Tin-117
• Tin-118
• Tin-119
• Tin-120
• Tin-122
• Tin-124
• Antimony-121
• Antimony-123
• Tellurium-120
• Tellurium-122
• Tellurium-123
• Tellurium-124
• Tellurium-126
• Tellurium-128
• Tellurium-130
• Iodine-127
• Xenon-124
• Xenon-126
• Xenon-128
• Xenon-129
• Xenon-130
• Xenon-131
• Xenon-132
• Xenon-134
• Xenon-136
• Caesium-133
• Barium-130
• Barium-132
• Barium-134
• Barium-135
• Barium-136
• Barium-137
• Barium-138
• Lanthanum-138
• Lanthanum-139
• Cerium-136
• Cerium-138
• Cerium-140
• Cerium-142
• Praseodymium-141
• Neodymium-142
• Neodymium-143
• Neodymium-144
• Neodymium-145
• Neodymium-146
• Neodymium-148
• Neodymium-150

Elements 61-75

• Promethium - No stable isotopes
• Samarium-144
• Samarium-147
• Samarium-148
• Samarium-149
• Samarium-150
• Samarium-152
• Samarium-154
• Europium-151
• Europium-153
• Gadolinium-152
• Gadolinium-154
• Gadolinium-155
• Gadolinium-156
• Gadolinium-157
• Gadolinium-158
• Gadolinium-160
• Terbium-159
• Dysprosium-156
• Dysprosium-158
• Dysprosium-160
• Dysprosium-161
• Dysprosium-162
• Dysprosium-163
• Dysprosium-164
• Holmium-165
• Erbium-162
• Erbium-164
• Erbium-166
• Erbium-167
• Erbium-168
• Erbium-170
• Thulium-169
• Ytterbium-168
• Ytterbium-170
• Ytterbium-171
• Ytterbium-172
• Ytterbium-173
• Ytterbium-174
• Ytterbium-176
• Lutetium-175
• Lutetium-176
• Hafnium-174
• Hafnium-176
• Hafnium-177
• Hafnium-178
• Hafnium-179
• Hafnium-180
• Tantalum-180
• Tantalum-181
• Tungsten-180
• Tungsten-182
• Tungsten-183
• Tungsten-184
• Tungsten-186
• Rhenium-185
• Rhenium-187

Elements 76-83

• Osmium-184
• Osmium-186
• Osmium-187
• Osmium-188
• Osmium-189
• Osmium-190
• Osmium-192
• Iridium-191
• Iridium-193
• Platinum-190
• Platinum-192
• Platinum-194
• Platinum-195
• Platinum-196
• Platinum-198
• Gold-197
• Mercury-196
• Mercury-198
• Mercury-199
• Mercury-200
• Mercury-201
• Mercury-202
• Mercury-204
• Thallium-203
• Thallium-205
• Lead-204
• Lead-206
• Lead-207
• Lead-208
• Bismuth-209