Assertion: beta decay | /r/HasProperty | gamma 2.6234 years
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Source sentences:
text: Beta Decay (β–), Gamma 2.6234 years Europium (Eu) 63 154 Beta Decay (β–), Beta Decay (β+), Gamma 16 years Europium (Eu) 63 155 Beta Decay (β–) 2 years