Which of the following statements is/are true? Select the best overall answer. a. a greater deuterium (or hydrogen isotope) values occur closure to the equator.  b. fortunately, using stable isotopes to spatially track movements of individuals gives accurate geographic locations both latitudinally and longitudinally c. variation in stable isotopes in feathers of adult vs. nestling Cooper's Hawks was likely not associated with difference in evaporative cooling rates from the respiratory tract d. none of the above

Q: Radioactive sodium-24, administered as 24NaCl, is given to treat leukemia. If a patient must receive…

A: Given that: amount of sodium-24 needed by patient = 190 μCi/kg amount of sodium-24 in the solution…

Q: the age of fossils can be trace by using isotopes c12 and c14 called carbon dating for generations.…

A: Given statement is : The age of fossils can be trace by using isotopes c12 and c14 called carbon…

Q: For each pair of elements listed, predict which one has more stable isotopes. b) For Se b) Co or Ni…

A: (a) F or Se : Atomic number of F = 9, so it has 9 protons, and its mass number is 19. Atomic number…

Q: a. Fr-218 decays by alpha decay. What are the atomic symbol and mass number of the product? Product:…

A: Write decay product of the given question---

Q: Why is the isotope 1Ci radioactive while 35Cl and 37Cl are not? Elements with an number of protons…

A: 36Cl is radioactive and unstable because it has odd no. of protons and neutrons whereas other two…

Q: Which one of the following statements is not correct?   a. when the atomic number is small, i.e., Z…

A: Atomic nuclei consist of electrically positive protons and electrically neutral neutrons. But…

Q: g. Formátion of h. Formation of Polonium-215 through alpha decay through positron emission ISSION

A: Positron emission: Positron emission or beta plus decay is a subtype of radioactive decay called…

Q: how many nucleons are there in 56^Fe

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Q: Write the nuclear equation for the nuclear reaction in which a nuclei undergoes ß- decay and changes…

A: When Barium undergo beta decay it product will be cesium-133 and gamma radiowaves.

Q: Consider the element Ag (p=47, n=61) with a nuclear mass of 1.79124 x 10-22 g. (Given: mass of…

A: given  Ag (p=47, n=61) with a nuclear mass of 1.79124 x 10-22 g. mass of proton = 1.67262 x 10-24 g;…

Q: he 'H nucleus is composed of a single proton and therefore has a relative mass loss of 0 g/mol.…

A:

Q: a. Choose an element with at least three stable nuclides. Element name: b. Write the isotope symbols…

A: isotopes are group of atom which have same atomic number but different mass  number due to…

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A: Concept introduction: Half life time period: It is the time required to complete the reaction to…

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A:

Q: Calculate the mass of a proton( 1.67 X10-27 Kg) IN MeV/C2?

A: Given information,         Mass of proton is 1.67 X10-27 Kg

Q: Consider the element Ti (p=22, n=26) with a nuclear mass of 7.94869 x 10-23 g. (Given: mass of…

A:

Q: 11C decays by positron emission. Balance the nuclear equation by giving the mass number, atomic…

A: 11C decays by positron emission. 6C11    --->      5B11   +     +1ẞ0   Or 6C11 --->  +1e0  +…

Q: positron emission of E 76 35 Br neutron emission of xe 131y 54Xe

A:

Q: Discuss one characteristic of stable isotopes that makes them useful for environmental studies.

A: Isotopes have a big role in environmental studies. Both stable and radioactive isotopes are are…

Q: a. At-209 decays by alpha decay. What are the atomic symbol and mass number of the product? Product:…

A: a. At -209 decays by alpha decay  Answer - atomic symbol - Bi                   Mass number - 205…

Q: We must first calculate the mass defect (Am) for 56Fe. Since atomic masses (which include the…

A: The actual mass of Iron-56 ( 56Fe26 ) is 55.9349 and mass of a proton (1H1) = 1.0078 . Here, we have…

Q: What is the daughter nucleus produced when Mn50 undergoes positron emission? Replace each question…

A: We know that; The atomic number of Mn is =25 and we have mass of Mn = 50 It is written as:   M2550n

Q: How many grams of 32P are there in a 5 mCi source?

A: Specific Activitty = 6.022×1023M×t12p32=t12= 14.29 daysSA = 6.022×102314.29×24×3600×32SA= 2.85×105…

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A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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A:

Q: What fraction of the 235U (t1/2=7.0x10^8yr) created when  Earth was formed would remain after…

A: Calculation of decay constant, K: k=0.693t1/2=0.6937.0×108 yr=9.9×10-10 yr-1

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A: The nuclear reaction involves the fission or fusion of radioactive elements which is proposed with…

Q: How can we benefit from isotopes? Cite 3 examples

A: Isotopes are the element which have same number of protons  and different  number of neutrons .

Q: True or False: The ratio of unstable isotopes to stable isotopes is part of absolute-age dating.

A: There are two methods of dating: 1) Relative age dating 2) absolute age dating Relative dating- It…

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A:

Q: Which one of the following statements is true for atom having following reaction in its nucleus? ip→…

A: Given is nuclear reaction.

Q: the atomic mass of yttrium-89 is 88.91u. the average atomic mass of yttrium that is reported in the…

A: Average atomic mass for a given element, as stated in the periodic table, is referred to as the…

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A: The half-life time of carbon-14 is about 5,730 years.  Thus a sample that had 1/4 of its original…

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A:

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: VISUALIZATION Modes of Radioactive Decay 140 130 120 110 100 90 80 70 60 50 • Stable • Radioactive…

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Q: 1. (b). Positron emission of 82Br35

A: Here we are asked to write the positron emission of 82Br35

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A: To find: The nuclidic  symbol and percentage abundance of nuclides having atomic number 7, 23, and…

Q: Identify the oxidizing agent in the chemical reaction                    5Fe+2(aq) + MnO4-(aq) +…

A: The chemical equation :  5Fe2+(aq) + MnO4-(aq) + 8H+(aq)  ----> 5Fe3+(aq) + Mn2+(aq) + 4H2O(l)…

Q: Referring to the figure below, would you except radioactive ? Explain your answer. 39 Ca to be 20…

A: Answer :-  No,3920Ca would not expected to be radioactive.

Q: Natural uranium consists almost entirely of 238U. To operate a nuclear power reactor, the fuel must…

A: Isotopes are atoms of the element with same atomic number and different atomic masses. So in these…

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Q: Write balancęd nuclear equations for the following: 10. Nitrogen-13 decays by positron emission

A:

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.