If the half-life of a radioactive element is 219.3 years and the atomic weight of the radioactive element is 301 kg/kmol then the number of atoms that decay in 1 s in 1 g of the sample of radioactive element are 2 x 1011 3х1011 О1х 1011 O 4 x 1011

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A: The half life is given as 5730 years Average Decay per Second = 10

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Q: Technetium-99 (half-life = 6.01 h) is used in medical imaging. How many half-lives would go by in…

A: a) Given t1/2 = 6.01 h 100% →6.01 h 50 % →6.01 h 25 % →6.01 h12.5 % →6.01 h 6.25 % →6.01 h 3.125 %…

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Q: The isotope ²¹²₈₃Bi has a half-life of 1.01 yr. What mass (inmg) of a 2.00-mg sample will remain…

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Q: The decay constant for the element X is 6.931 yr⁻¹. What is the half-life?

A: Relation between decay constant (K) and half life (t12) of an element:-t12 =0.693K

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A: Given that,Initial amount of sample = 1.55gHalf life time = 3.8 daysTime = 5.5 days

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A: Here we are required to find the decay constant for the given radioactive substance

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Q: Initial Amount After Half-life (years) Isotope Оuantity 1000 Years 33. 226RA 1599 10 g 94. e 5715…

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Q: Thallium-201 is used medically to diagnose heart problems. What is the half-life of thallium-201 if…

A: Time = 128 hours  t1/2 = ?

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Q: Iodine-131 is an important radioisotope of iodine that has a radioactive decay half-life and is…

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Q: Thallium-201 is used medically to diagnose heart problems. The half-life of thallium-201 is 72.9…

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Q: 29) fodine -131 decaus by emission with a half-life of 8.04 day s, what is the decay censtant for…

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A: We know that,→ Radioactivity Phenomena follow first owner kinetics.So, Rate = KA1    K→Rate…

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A: Given: The activity of sample = 4.75 d.p.m/g C The activity of fresh wood = 14.3 d.p.m/g C And…

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. How…

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Q: Phosphorus-32 (3215P) decays by beta emission and it has a half-life of 14.3 days. Determine the…

A: Answer - The correct option is (A) 5.2 x 104 Ci

Q: For the transmutation X + He → 2C+n, which value is X? - o 13c o Be o lo o 170

A: