How many kJ of energy are released to form one mole of 116Cd from protons and neutrons if the atom has a mass of 115.904755 amu? Please remember to include the mass of electrons in the calculation. Given the mass of a proton is 1.007825 amu

Q: 1.00 mL is taken from a stock solution of concentration 8.47 g/L and added to a 10.0 mL volumetric…

A: Given, Stock solution: Concentration of the stock solution (C1) = 8.47 g/L Volume of the stock…

Q: -22 A copper atom has a mass of 1.06 x 10 g and a penny has a mass of 2.5 g. Use this information to…

A: Mass of copper atom = 1.06 ×10-22 g Mass of penny = 2.5g We have to find moles of copper atom that…

Q: Determine the charge and made of nuclei in amu made up of the following: 6 protons and 6 neutrons…

A: 1) The nuclei is having 6 protons and 6 neutrons Since the charge of proton is +1 and charge on…

Q: She discovered two new elements and received two Nobel Prizes, one in chemistry and one in physics.…

A: Marie Curie was first woman to win noble prize. She discovered two elements radium and polonium

Q: The radioactive element carbon 14 has a 1/2 life of 5750 years a scientist determined that the bones…

A: let assume the initial concentration of C-14 as Co=100%

Q: b Pb undergoes four decay reactions: B, B, a, B. Step 1. Pb undergoes B decay to give Bi In the…

A: Given: Pb undergoes four decay reactions: β, β, α, β In the first step, Pb82214 undergoes β decay to…

Q: In _______, a negatively charged electron is ejected from the unstable nucleus, converting a neutron…

A: Stability of the nucleus is generally influenced by 3 factors- Mass Defect: greater mass defect,…

Q: Describe a cathode-ray tube and how it operates.

A: A cathode ray tube (CRT) is a specialized vacuum tube in which images are produced when an electron…

Q: Write Chlorine-35 and Chlorine-37 in isotope notation.

A: Given,  Chlorine-35 and Chlorine-37

Q: Where are elements heavier than helium created?

A:

Q: Atomic number for Uranium is 92 How many protons, electrons, neutrons in Isotope U-92?

A: Answer - According to the question - Atomic no. of uranium, Z=92    No. of protons =Z=92   No. of…

Q: Given the only naturally occurring isotope of aluminum is Al-27, determine its mass from the…

A: Isotopes of an element are the ones which have the same atomic number but different mass number.…

Q: 1.) The energy change in a chemical reaction comes from a change in mass. Calculate the mass change…

A: Step 1 Given: The ∆H°rxn is -802.35 kJ/mol. Introduction: Einstein equation gives us the…

Q: The cleanup of threat of toxic nuclear isotopes can be permanently eliminated by simply storing it…

A: Toxic nuclear isotopes cannot be permanently eliminated. This is temporary process.

Q: Determine the number of protons and neutrons in uranium-235. Enter your answers numerically…

A: As we know that atomic number of the element equals the number of protons.  For uranium-235, Atomic…

Q: Determine the AE of Zinc-65 that emitted a proton (¹₁P). The mass of Zinc-65 is 64.55961 amu and the…

A:

Q: If an isotope has 90 protons, how many neutrons are required in order for it to have a stable atomic…

A: Concept-: Isotope: Isotopes are known as members of a family of an element which all have the same…

Q: Draw the structure of 3,3-diethylhexane

A:

Q: H-2 is a stable atom. However, H-3 is a radioactive element. Give the reason.

A: Hydrogen (Z=1) element having  three Isotopes named as Hydrogen, deuterium and tritium.

Q: Which of the following statements is INCORRECT? a. Energy is neither created nor destroyed in…

A:

Q: Draw the nuclear symbols (with chemical symbols, mass numbers, and numbers of protons) for an atom…

A: Draw the nuclear symbols of the given data---

Q: Starting with SEVEN TONS of the ore of pitchblende, Pierre and Marie Curie isolated a few milligrams…

A: Polonium-218 is a radioactive element. It can undergo both alpha and beta decay. Alpha decay is a…

Q: Would you agree to buy 1.23 * 10 ^ 23 silver atoms for $23? Explain why or why not, all work. The…

A: We know that 1 mole = 6.022×1023 atoms Now, convert the given silver atoms to the moles as;…

Q: ACTIVITY # 5 DIRECTIONS: COMPLETE THE TABLE: Element or lon Atomic umber Mass Number of Protons of…

A:

Q: What is the charge of the nucleus of element 89?

A: The number of protons corresponds to the charge of the nucleus since Neutrons have no net charge, it…

Q: What does the nucleus of an atom consists of?

A: In an atom, three fundamental particles are present, proton, electron, and neutron.

Q: which particle corresponds to isotope 3? 183Mt, 183W, or 109W

A: Isotopes are atoms that contain same number of protons but different number of neutrons. As a result…

Q: What is the mass number for an atom of barium containing 56 protons and 79 neutrons?

A: Mass number of element is equal to  sum of number of proton to number of neutron.  Hence for a atom…

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

A:

Q: If an atom of Uranium, Element 92, were to absorb an Alpha particle (comprising two protons and two…

A: For a balanced nuclear reaction sum of mass number and sum of atomic numbers must be same on both…

Q: Which of the following particles has a mass of -0 amu and a charge of 1-?

A: The question is asking us to identify a particle that has a mass of 0 atomic mass units (amu) and a…

Q: Strontium-90 is radioactive and has a half life of 28.8 years. How much of a 9.70 mg sample would be…

A:

Q: Which demonstrates the existence of isotopes? a. 18 Ar and K b. ºC and EN c. 23 Th and 23 Th d. 7Z1…

A: Isotopes : Two or more forms of the same element that contain same atomic number (same number of…

Q: What is the mass of 1.213 × 108 mol S?

A: Given :-  Number of moles of S = 1.213 × 108 mol  To calculate :-  Mass of S

Q: How many protons, neutrons, and electrons are contained in each of the following atoms or ions?…

A: In a neutral atom, atomic number = Number of protons = Number of electrons.  Number of neutrons(n) =…

Q: NUCLEAR CHEMISTRY: Consider the nuclei 117, 50 Sn. Determine its mass defect in kilograms if its…

A:

Q: The isotope of Nitrogen with a mass of 15amu is written as _? The isotope of Uranium with a mass of…

A:

Q: Identify the following elements with their corresponding mass number. Use this format for your…

A: We have find out the solution.

Q: How many moles of electrons are needed to produce 1 mole of Ba (s)

A: Explanation to the correct answer is given below

Q: The fuel for Nuclear Reactors involves the decay of Uranium-235. 235U + 'n ®93Kr + 140Ba R + 3 'n…

A: Consider the fuel Uranium-235: Calculation of number of protons and number of neutrons: The number…

Q: Think about making an atom. The nucleus is made of protons and neutrons. Why might this be unstable?

A: The objective of the question is to explain what makes an atom unstable.