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La-138 ( 0.0902% , 1.05E+11 ) La-139 ( 99.9098% ) Isotopes: La-117 La-118 La-119 La-120 La-121 La-122 La-123 La-124 La-125 La-126 La-127 La-128 La-129 La-130 La-131 La-132 La-133 La-134 La-135 La-136 La-137 La-140 La-141 La-142 La-143 La-144 La-145 La-146 La-147 La-148 La-149 La-150 La-151 La-152 La-153 La-154 La-155 For information on elements, we recommend  . |