One of the techniques for absolute dating of wood using annual pairs of growth rings is called: A. Radiocarbon dating B. Isotopes analysis C. Dendrochronology D. None of the above

Q: Macmillan Learning A fossil is found to have a "Clevel of 63.0% compared to living organisms. How…

A:

Q: Answer all. Explain briefly how these nuclear synthetic pathways aid in the production of heavy…

A: The aim of this question is to explain the nuclear fusion pathways contribute to the production of…

Q: 1. The half-life. of a radioactive isotope a) displays 1st order kinetics b) is independent of the…

A: Characteristics of Radioactive materials

Q: Radiation can be used to__________.     provide electricity     sterilize the surface of meats,…

A: Radiation can be used in all these.

Q: Real-World Applications: U-238 Dating But what if all the C-14 in a sample has decayed or the sample…

A: Uranium-238 or U-238 (238U) is the most common isotope of uranium found in nature and used for…

Q: 1. If you have 36 moles of R, how many moles of F3R2 wvill be produced? moles 3 FAD2 +2 R F3R2 +2 Ad

A: This question can be solved using law of equal proportions.

Q: 11. Using the data below, draw a graph of percent remaining (y-axis) vs. time (x-axis) for a…

A: We have to plot a graph of the percent remaining(Y-axis) and time, years (X-axis) and then solve for…

Q: lonization radiation usually affects molecules in human cells like: glucose water DNA lipids

A: Is a radiation with enough energy to alter an atom . It is a human carcinogen

Q: Iridium-192 is one radioisotope used in brachytherapy, in which a radioactive source is placed…

A: It's a multiple part question type.   The given graph represents time and the percentage of…

Q: Complete the following equation:   131 I53  →   β + _________

A:

Q: Answer all questions 1. It has been announced on radio that a toxic gas is spreading towards UENR…

A: The solution is given below -

Q: ALL CHEMICAL WASTE: A. MUST BE LABELED AS "HAZARDOUS WASTE + CHEMICAL NAME" B. IS DISPOSED OF…

A: Chemical waste is defined as the by-product or residual waste material produced during chemical…

Q: Write the following nuclear equations  A.Xenon-118, which decays by emitting a positron B.Beta…

A: A nuclear reaction involves the conversion of nucleus with the emission of certain nuclei or small…

Q: Why do scientists study and synthesize new transuranium elements in the laboratory?

A: Transuranium elements: These are elements having an atomic number greater than the uranium element.…

Q: The proportion of carbon-14 still present in a sample after "t" years is e−0.00012t † Estimate the…

A: The decay of carbon-14 is governed by the first order kinetics. If A0 is the initial concentration…

Q: The rem is a unit that measures the biological effect of radiation. True

A: We have to tell whether the rem is used as for measuring biological effect of radiation or not

Q: Which of the following questions would not be of scientific importance? Note: there is more than one…

A: (a) The question "Does fracking affect the frequency of severe earthquakes?" is indeed of scientific…

Q: ALL CHEMICAL WASTE: A. MUST BE LABELED AS "HAZARDOUS WASTE + CHEMICAL NAME" B. IS DISPOSED OF…

A: Chemical waste refers to any substance that is no longer needed or has become hazardous due to its…

Q: A certain antihistamine is often prescribed for allergies. A typical dose for a 100 - pound person…

A: a) It is given that a 100 pound person requires 25 mg every 6 hours. So, in a week the total number…

Q: 1.The isotope 232Np undergoes positron emission. The mass number of the product is 1._____ and the…

A: Given,The isotope :     232Np

Q: which of the following should be monitored regularly for a patient who is taking a luteining hormone…

A: The objective of the question is to identify the most appropriate monitoring method for a patient…

Q: Assign R/S for carbon 13. I Attachments но- A. R B. S ОН 3 ОН IS Н 16 12 10 ОН ||

A: Please find the attachment.

Q: Is-N(CH3)2 an o/p- or a m-directing agent during SEAR? Draw the o- and m- resonance structures to…

A: In electrophilic aromatic substitution reaction an atom that is attached to an aromatic system is…

Q: Which reaction correctly shows the rare event for electron capture?

A: we have to select the nuclear equation that represents electron capture

Q: The radioactive isotope carbon-14 is used for radiocarbon dating. The half-life of carbon-14 is…

A:

Q: 8. A radioisotope is going to be used in an experiment. At the end of 10 days, only 5% is to be…

A:

Q: 2. Radioactive cobalt-60 is used extensively in nuclear medicine as a y-ray source. It is made by a…

A: A question based on nuclear chemistry that is to be accomplished.

Q: Which of the following compositions of carbon allows scientists to attribute increased carbon in the…

A: This question can be answered based on the stability and abundance of the corresponding isotopes of…

Q: Which acts as storage of genetic information in cells? a. nucleic acids b. lipids c. proteins d.…

A: Nucleic acid contains of N containing bases such as Adenine, Guanine, Cytosine, Thymine and Uracil.…

Q: Beta and positron emission is polyenergetic  true or false

A: Nuclear chemistry can be defined as the branch of chemistry that deals with radioactivity .and…

Q: 18. Why is the neutron to proton ratio so important? Scientists made up this concept because they…

A: The correct answer about n/p ratio is given below

Q: Regarding positron decay: a. What is a positron? Give an example of an isotope that decays by this…

A: Part APositron (β+) is an anti-electron particle having a charge same as that of electron but of…

Q: Calculate how long it will take for the amount of radionucleotide in each sample to decrease to 1/16…

A: Calculation for time to decrease by 1/16 of initial amount of sample A:

Q: Determine whether the following nuclides lie in a band of stability or not. If not classify the…

A: Here we have to name the given coordination complexes.

Q: A fossilized bone is found to contain one-fifth of the C-14 level found in living matter. Estimate…

A: Given,  A fossilized bone is found to contain one-fifth of the C-14 level the age of the fossil is:

Q: Answer the following questions if TRUE or False. (21-30) 21. Argon gas is naturally occuring…

A: All questions are based on radioactivity of elements. You have given multiple questions and…

Q: Use the above information to answer the following questions. 1. Remains of an ancient caveman are…

A: Given: t1/2 = 5730 years The amount of C-14 left in the various species: 1) 25% in ancient caveman…

Q: 3. Based on how each food burned, which food would be the best to use for a fuel that has a steady…

A: #3: #(a): Higher the calorific value, better is the fuel that gives steady  flame and burn for a…