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Principles of Physics: A Calculus-Based Text
5th Edition
ISBN: 9781133104261
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Question
Chapter 30, Problem 49P
(a)
To determine
The decrease in the original activity of
(b)
To determine
The decrease in the original activity of carbon-
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Name
Date
Class
3-4 Apply
The Carbon-Nitrogen Cycle
Hydrogen nuclei are involved in a process known as the carbon-nitrogen cycle. The six reactions
in this decay series are presented below. The net result of the carbon-nitrogen cycle is that four
hydrogen atoms are combined to produce one helium atom. Reactions 2 and 5 involve decay
particles called positrons ( e ). Positrons are essentially positively charged beta particles.
Reaction 1:
H + "C →
Reaction 2:
+
Reaction 3:
H +
→ "N + y
Reaction 4:
H +
- "0+ y
Reaction 5:
+e
Reaction 6:
H + "N -
+ He+y
Use your knowledge of radioactive decay to fill in the missing parts of each nuclear equation
above.
Which type of radioactive particle was emitted by the following isotopes?
a. N
b. N
In the cycle, what happens to the nitrogen-13 nuclei produced in the first reaction?
What happens to the atom produced in the sixth reaction?
Chapter 30 Solutions
Principles of Physics: A Calculus-Based Text
Ch. 30.1 - Prob. 30.1QQCh. 30.1 - Prob. 30.2QQCh. 30.3 - Prob. 30.3QQCh. 30.3 - Suppose you have a pure radioactive material with...Ch. 30.4 - Which of the following is the correct daughter...Ch. 30.4 - Which of the following is the correct daughter...Ch. 30 - Prob. 1OQCh. 30 - Prob. 2OQCh. 30 - Prob. 3OQCh. 30 - Prob. 4OQ
Ch. 30 - Prob. 5OQCh. 30 - Prob. 6OQCh. 30 - Prob. 7OQCh. 30 - Prob. 8OQCh. 30 - Prob. 9OQCh. 30 - Prob. 10OQCh. 30 - Which of the following quantities represents the...Ch. 30 - Prob. 12OQCh. 30 - Prob. 1CQCh. 30 - Prob. 2CQCh. 30 - Prob. 3CQCh. 30 - Prob. 4CQCh. 30 - Prob. 5CQCh. 30 - Prob. 6CQCh. 30 - Prob. 7CQCh. 30 - If no more people were to be born, the law of...Ch. 30 - Prob. 9CQCh. 30 - Prob. 10CQCh. 30 - Prob. 11CQCh. 30 - What fraction of a radioactive sample has decayed...Ch. 30 - Prob. 13CQCh. 30 - Prob. 14CQCh. 30 - Prob. 15CQCh. 30 - Prob. 16CQCh. 30 - Prob. 17CQCh. 30 - Prob. 1PCh. 30 - Prob. 2PCh. 30 - Prob. 3PCh. 30 - Prob. 4PCh. 30 - Prob. 5PCh. 30 - Prob. 6PCh. 30 - Prob. 7PCh. 30 - Prob. 8PCh. 30 - Prob. 9PCh. 30 - Prob. 10PCh. 30 - Prob. 11PCh. 30 - Prob. 12PCh. 30 - Prob. 13PCh. 30 - Prob. 14PCh. 30 - Prob. 16PCh. 30 - Prob. 17PCh. 30 - Prob. 18PCh. 30 - What time interval elapses while 90.0% of the...Ch. 30 - Prob. 20PCh. 30 - Prob. 21PCh. 30 - Prob. 22PCh. 30 - Prob. 23PCh. 30 - Prob. 24PCh. 30 - Prob. 25PCh. 30 - Prob. 26PCh. 30 - Prob. 27PCh. 30 - Prob. 28PCh. 30 - Prob. 29PCh. 30 - Prob. 30PCh. 30 - Prob. 31PCh. 30 - Prob. 32PCh. 30 - Prob. 33PCh. 30 - Prob. 34PCh. 30 - Prob. 35PCh. 30 - Prob. 36PCh. 30 - Prob. 37PCh. 30 - Prob. 38PCh. 30 - Prob. 39PCh. 30 - Prob. 41PCh. 30 - Prob. 42PCh. 30 - Prob. 43PCh. 30 - Prob. 45PCh. 30 - Prob. 46PCh. 30 - Prob. 47PCh. 30 - Prob. 48PCh. 30 - Prob. 49PCh. 30 - Prob. 50PCh. 30 - Prob. 51PCh. 30 - Prob. 52PCh. 30 - Prob. 53PCh. 30 - Prob. 54PCh. 30 - Prob. 55PCh. 30 - Prob. 56PCh. 30 - Prob. 57PCh. 30 - Prob. 58PCh. 30 - Prob. 59PCh. 30 - Prob. 60PCh. 30 - Prob. 61PCh. 30 - Prob. 62PCh. 30 - Prob. 63PCh. 30 - Prob. 64PCh. 30 - Prob. 65PCh. 30 - Prob. 66PCh. 30 - Prob. 67PCh. 30 - Prob. 68PCh. 30 - Prob. 69PCh. 30 - Prob. 70P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A 50 grams in radionuclide decays 45 grams in 240 years. What is the halflife of the radionuclide? If the energy of the hydrogen atom is -13.6 eV/n2, determine the energy of the hydrogen atom in the state n= 1,2,3,4,5 and hence the energy required to transition an atom from the ground state to n=5? [ 1eV = 16 x10-19 J , h = ]arrow_forwardA pure carbon archaeological artefact has an age of 24421 years and emits 14 electrons per minute. Find the activity of the artefact at the time it was made. Assume that the half-life of ¹4C is 5730 years. Enter your answer in Bq to 1 decimal place.arrow_forwardTen grams of carbon from a freshly felled tree produce 150 electrons (from β-decay) per minute. Ten grams of carbon extracted from a prehistoric wooden tool produce 25% of that decay rate. Given that the half-life of 14C is 5,730 years, how old is the tool?arrow_forward
- i can confirm answer 5118 years is wrongarrow_forwardCarbon is one of the fundamental elements in everything that's alive on Earth. The three naturally occuring isotopes of carbon are 12C (mass fraction = 0.99), 1³C (mass fraction = 0.01) and radioactive 14C. The relative abundance or mass fraction of 14C is about 10-12 (or 1 in 1012 atoms). This radiocarbon originates from cosmic rays interacting with nitrogen atoms in the atmosphere and has a half-life time of 5730 years. Since it's half-life time is a lot higher than the time the atoms need to go through the carbon cycle, all living biomass at the Earth's surface has the same abundance of 14C as in the atmosphere. After a plant or animal has deceased the amount of 14C atoms will decay exponentially according to the following formula: = mo · 2-t/tı/2 with mo as the mass fraction at t = 0 and t1/2 as the half-life time. Since we know the abundance of 14C in the atmosphere, we can use this equation to estimate the time of death of an organism. This method is known as carbon dating.…arrow_forwardYou have just isolated a new radioactive element. If you can determine its half-life, you will win the Nobel Prize in physics. You purify a sample of 2 grams. One of your colleagues steals half of it, and four days later you find that 0.4 gram of the radioactive material is still left. What is the half-life? (Round your answer to three significant digits.)arrow_forward
- Which of these elements is not “cooked up” by thermonuclear fusion processes in stellar interiors: carbon, silicon, chromium, bromine?arrow_forwardPlease see attached question.arrow_forwardThe half-life of krypton-91 ("Kr) is 10 s. At time t = 0 a heavy canister contains 3 g of this radioactive gas. (a) Find a function m(t) = m,2-h that models the amount of "Kr remaining in the canister after t seconds. (b) Find a function m(1) = m,e¯ that models the amount of "Kr remaining in the canister after i seconds. (c) How much "Kr remains after I min? (d) After how long will the amount of "Kr remaining be reduced to 1 ug (1 microgram, or 10- g)?arrow_forward
- If we start with 6.4*10^12 atoms of a radioactive material with a half life of 1.2 days, how many atoms remain after 6 days?arrow_forwardWhy is uranium-235 used in nuclear fission? why is uranium-235 one of the only elements ideal for nuclear fission to create energy? Is there a link between its stability and its size?arrow_forwardCarbon-14 has a half-life of 5730 years. In a plant fossil, you find that the 14C14C has decayed to 1/4.00 of the original amount. How long ago was this plant alive?arrow_forward
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