Which of the following includes two chronometric dating method techniques? Group of answer choices Carbon-14 and K/Ar (Potassium Argon) Uranium Series and Paleomagnetism ESR (electron spin resonance) and Stratigraphy

Q: Which of the following best explains why a photomultiplier tube is more accurate than a…

A: Photomultiplier tube: Photomultiplier tube are a kind of vacuum tubes which are sensitive detectors…

Q: Which of the following is considered to be radioactive isotope of hydrogen? Also give the names of…

A: Amongst the three isotopes of hydrogen, 1H is the most stable isotope with abundance of 99.98%. 2H…

Q: What is the binding energy in kJ/mol Sb for antimony-123? |k]/mol 51 H+ 72;n Sb The required masses…

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Q: 77 78 79 80 81 Ir Pt Au Hg TI Iridium Platinum Gold Mercury Thallium 192.22 195.08 196.97 200.59…

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Q: Calculate the packing fraction, mass defect and energy released in the formation of the argon atom.…

A: The packing fraction, mass defect and energy released in the formation of the argon atom are to be…

Q: 1. 12 = 21 +13 2. 1/2.2= 1/23 – 1/22 3. the frequency of radiation of A3 is less than that of the…

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Q: Determine the missing element ? ----> 90234Th + 24HE

A: The atomic number and atomic mass of the element on the symbol of the elements can be represented…

Q: One vial of COVID-19 vaccine, when thawed, contains 0.45 mL of solution. Before it is administered,…

A: Given: Concentration of NaCl = 0.154 M  Volume of vaccine = 0.45 mL = 0.00045 L…

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: When radioactive C-14 converts spontaneously to N-14, what change must have occured in the nucleus?…

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Q: a - particles from a polonium source strike a thin gold foil of thickness 4 x 10-7 m. Most of the…

A: Thickness of foil (L) = 4 x 10-7 m Fraction of alpha particles scattered by more than 90 degree =…

Q: (i) State the Pauling First Rule for predicting the pKa of oxoacid. Illustrate your answer with an…

A: Ans(a)- Pauling first rule says tha pKa= 8-5p ,where p= number of M=O   (b) pKa order HClO3 >…

Q: Đ Remarkably, while the perchlorate and periodate ions are well-known, the perbromate ion, BrO4, is…

A: Given:In the polyatomic ion of the form XO4, X underwent beta-decay to transmute to Br.

Q: 1. Radioactivity * A. is spontaneous B. involves change in nuclear shape C. none of the above D.…

A: Radioactivity is the process of  decay where nucleus break down to form a stable nucleus.

Q: 4. 49 Cr-> 49 V + 24 23 5, 238U- 23A Thị 92 90 6. 214 Bi-> 214 Po+ 83 84

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Q: If the laws of physics were different and the primary element in the universe were boron-11 (Z = 5),…

A: Given, If the primary element in the universe is boron-11 what are the four most abundant elements?

Q: 24Na (k = 0.0462/hr)? %3D What would be the activity in Curies of a 50 mg sample of

A: Given data Mass of Na = 50 mg Rate constant value: We know that following Atomic mass of Na = 22.9…

Q: Use Einstein’s equation, the mass in grams of 1 amu, andthe relation between electron volts and…

A: Given: Mass difference, ∆m = 1amu Energy equivalent of a mass difference of 1amu is calculated as…

Q: Discuss the reasons why 226Ra (Z=88) is radioactive element while 56Fe (Z=26) is a stable element.…

A: Radioactive elements are composed of atoms in which their nuclei are unstable and losses their…

Q: QUESTION 3 For each of the following, give the most specific classification according to type of…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Choose the correct answer. The difference between the massnumber of an isotope and its atomic number…

A: The mass number of an isotope is the sum of the number of protons present in an atom and the number…

Q: 100 10 0.1 Binding Energy (MJ/mol) The photoelectron spectrum for the element boron is represented…

A: Answer : (B) The spectrum shows a single electron in the 2p subshell

Q: Predict its decay pathway

A: Atomic number of Strontium (Sr) is 38

Q: Density of the hydrogen nucleus Calculate the density of the hydrogen nucleus using the information…

A: Given : Radius of hydrogen nucleus = 0.9 fm  Since 1 fm = 10-13 cm  Hence radius of hydrogen nucleus…

Q: Starting from the Clasius-Clapeyron equation, log p : Lo + constant and assuming the latent heat of…

A: The Clausius-Clapeyron equation is:

Q: DCI CH3 -78 °C 1

A:

Q: What is the mass defect (in atomic mass units) of 12C? (Answer to at least the thousandths decimal…

A:

Q: +] P. Bb Tests-CHE-100-01Y Spring 22 * Question Completion Status: QUESTION 9 Which is true…

A: Everything in the world wants to get maximum stability and minimum energy and for each element wants…

Q: 92 UV 380 500 600 700 780 IR 7500 10. After completing the Star Spectra Activity, please explain how…

A: Answer 11)  Exoplanet atmosphere tells physical condition of the world. We can use transit…

Q: Set 1 kµ/kp = 3.7 %3D Set 2 O,N kh/kp = 1.5 ame the kinetic isotope effect for experiments in Set 1…

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Q: What species is formed by gamma ray emission of fermium-250? A) ²⁵⁰Es B) ²³⁰Th C) ²⁵⁰Fm D) ²⁵¹Fm E)…

A: Answer :-  (C) 250Fm The species formed by gamma ray emission of fermium-250 is 250Fm…

Q: CoupLETE THE FOLLOWING Nu CLEAR EQUATION He 241 Am 95 ? + d. 21

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Q: 18 19 20 21 22 23 Write the electron configuration for a carbon anion with a charge of -1. 0 ? X 24

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Q: What is the relationship between bond length and pKa?

A: Since we know that the acidic character of any acid is proportional to the tendency to produce H+…

Q: + + + + + + + + Play Mass Charge L -1 +1 dentify which particles curve towards the positively…

A: The positively charged particle will be attracted by the negatively charged plate and repelled by…

Q: Given: Ca2+ Mg* Na K* = 109 mg/L = 24 mg/L = 117 mg/L 7 mg/L = 0.01969 = 171 mg/L = 238 mg/L, Acti…

A: Given that, molecular weight of Ca = 40 So, solution having 109 mg/mL Ca2+ =  0.10940=0.003 M Ca2+…

Q: Homework for Unit 1 1. Determine the number of protons, neutrons and electrons for each of the…

A:

Q: explain the working mechanism of ICP emission? Please provide neat and clean handwriting and…

A: The full form of ICP is inductively couple plasma spectroscopy.It is capable of detecting most…

Q: What is the reason why carbon is considered a unique element Carbon has two stable isotopes, carbon…

A: Reason why carbon is considered a unique element- Carbon is unique among all the elements because it…

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: (3a-104-17) Would you agree to buy 1.23 x 1021 platinum atoms for $17? Explain why or why not,…

A: Given : Number of atoms = 1.23 X 1021 atom Cost of purchase = $17 And current price of platinum = $…

Q: Which of the following equations is correct? A. PV = F + G B. F – G = PV C. F = G – PV D. G + F =…

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Q: 3. Which radioactive process would turn Am-243 to Np-239? positron emission alpha decay gamma decay…

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Q: 165 21. Identify the neutron-to-proton ratio for the isotope 67H0 and determine if the isotope is…

A: Identify the neutron-to-proton ratio in the given nuclide--

Q: What is the mfp of 0.0253 eV neutrons in Zr? For Zr: A = 55.8, p = 6.5 g/cm³, σs = 8 b, og = 0.18 b.

A: Given: For Zr, A = 55.8 g/mol Density = 6.5 g/cm3 σs = 8b σa = 0.18b 1 barn = 10-28 m2 = 10-24 cm2…

Q: X-rays over dose very dangerous because the interaction causes ionization of atom a, B and y…

A: 1) We say that x-rays are "ionizing rays" meaning that they have the unique capability to remove…

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.