Question

Consider (12.5 + A) micro-grams of a radioactive isotope with a mass number of (78 +...

Consider (12.5 + A) micro-grams of a radioactive isotope with a mass number of (78 + B) and a half-life of (32.6 + C) million years. If the energy released in each decay is 32.6 keV, determine the total energy released in joules (J) in 1 (one) year. Give your answer with three significant figures.

A=1

B=5

C=11

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Consider (12.5 + A) micro-grams of a radioactive isotope with a mass number of (78 +...
Consider (12.5 + A) micro-grams of a radioactive isotope with a mass number of (78 + B) and a half-life of (32.6 + C) million years. If energy released in each decay is 32.6 keV, determine the total energy released in joules (J) in 1 (one) year. Give your answer with three significant figures. A= 9 B= 0 C= 11
Consider 13.5 micro-grams of a radioactive isotope with a mass number of 85 and a half-life...
Consider 13.5 micro-grams of a radioactive isotope with a mass number of 85 and a half-life of 46.6 million years. If energy released in each decay is 46.6 keV, determine the total energy released in joules (J) in 1 (one) year. Give your answer with three significant figures.
Consider a pure sample of a radioactive isotope with a mass number of (52). If the...
Consider a pure sample of a radioactive isotope with a mass number of (52). If the sample has mass of (25.0) micrograms and the isotope has a half-life of (12.5)x10^6 years, determine the decay rate for the sample. Give your answer in decays/second and with 3 significant figures.
Consider a pure sample of a radioactive isotope with a mass number of (46+A). If the...
Consider a pure sample of a radioactive isotope with a mass number of (46+A). If the sample has mass of (25.0+B) micrograms and the isotope has a half-life of (4.50+C)x106 years, determine the decay rate for the sample. Give your answer in decays/second and with 3 significant figures. A= 9 B= 0 C= 11
1. In a particular metal, the K-shell has an energy of -(24.0+A) keV, while the L-shell...
1. In a particular metal, the K-shell has an energy of -(24.0+A) keV, while the L-shell has an energy of –(2.50+B) keV. Find the wavelength of the Kα (alpha) characteristic x-ray for this metal. Give your answer in picometers (pm) and with 3 significant figures. A:4 B:5 2. Consider an isotope with an atomic number of (2(5+A)) and a mass number of (4(5+A)+2). Using the atomic masses given in the attached table, calculate the binding energy per nucleon for this...
An isotope of gallium, 67Ga, has an atomic number of 31 and a half-life of 78...
An isotope of gallium, 67Ga, has an atomic number of 31 and a half-life of 78 hours. Consider a small mass of 3.4 grams for 67Ga which is initially pure. 1. Initially, what is the decay rate of the gallium? Ro = 2. What is the half-life of the gallium after 24 hours? T1/21 = 3. Initially, what is the initial decay constant of the Ga atoms after 24 hours? 4. λ1 = What is the decay rate of the...
A beta emitter with decay rate of (4.30 + A) x 109 Bq is inserted into...
A beta emitter with decay rate of (4.30 + A) x 109 Bq is inserted into a tumor for a total time of (5.80 + B) minutes. If the beta particles have an average energy of (235 + C) keV, determine the total energy released in joules (J). Give your answer with three significant figures. A= 9 B= 0 C= 11
A freshly prepared sample of a certain radioactive isotope has an activity of 10.4 mCi. After...
A freshly prepared sample of a certain radioactive isotope has an activity of 10.4 mCi. After 4.20 h, its activity is 8.00 mCi. (a) Find the decay constant and half-life. decay constant s-1 half-life h (b) How many atoms of the isotope were contained in the freshly prepared sample? (c) What is the sample's activity 33.7 h after it is prepared? mCi
A sample of a certain radioactive material decays to 89.36% of its mass after 2 years....
A sample of a certain radioactive material decays to 89.36% of its mass after 2 years. a. What is the half-life of the material? Show your calculations and keep four significant figures of accuracy. b. How long would it take for the sample to decay to 10% of its original mass? How much longer after that would it take to decay to 1% of its original mass?
1. Given that a freshly prepared radioactive isotope has a half-life of 10 days, the percentage...
1. Given that a freshly prepared radioactive isotope has a half-life of 10 days, the percentage of it remaining after 30 days is A 30.0 %. B 10.0 %. C 12.5 %. D 72.5 %. 2. During a second half-life, the original material has decayed A 25%. B 50%. C 75%. D 100%.