What is the decay constant in year 1? Learning Goal: Keep 4 digits after the decimal point. Radioactive decay - Half - life Thre N ? 1000 500,000 X 760 621506 X . 10R 500 Number of ru 250 977 year 1 Time in multiples ail fus A radioactive sample's half-life is 30.2 years. 1 year = 365 days, 1 day = 24 hours, 1 hour = 60 Submit Previous Anawere Request Answer min, 1min = 60 s * Incorrect; Try Again; 5 attempts remaining Part B What is the decay constant in s-1? Use scientific notations, format 1.234*10". ? A= Submit Request Answer Part C - The initial sample is 4.1 kg . What is the mass of the radioactive material that remains after 5.00 years ?Part C - The initial sample is 4.1 kg . What is the mass of the radioactive material that remains after 5.00 years ? Learning Goal: Keep 3 digits after the decimal point. Radioactive decay - Half - life There 06 ? 1000 250,000 125,000 760 12 506 kg mass remains = Number of nuclides, Nix 250 Submit Request Answer Part D - in Part C. What is the mass of the radioactive material that has decayed in 5.00 years ? A radioactive sample's half-life is 30.2 years. 1 year = 385 days, 1 day = 24 hours, 1 hour = 60 min, 1min = 60 s Keep 3 digits after the decimal point. keg mass decayed = Submit Request Answer Part E - New case: The initial sample has No = 8.1x10 radioactive nuclei. What is the initial activity in decays's (Bq)? Keep 2 digits after the decimal point. 0 0 ? Bq Ro