bjmj95621 bjmj95621 11-03-2024 Physics contestada Actinium-226 has a half-life of 29.0 hours. If 225 mg of actinium-226 disintegrates over a period of 116 hours, how many mg will remain? a) 56.25 mg b) 28.12 mg c) 14.06 mg d) 7.03 mg