element X of atomic number 98 undergoes alpha-decays. The constant rate of alpha decay is n particles per second. (Atomic mass number of X is 251 u). If the element Y (daughter nucleus) has atomic mass of 239 u. What is the mass of total number of alpha particles radiated in grams; (2) 49 (b) 12 g () 2x 10723 g d 4x 10723 g

Q: Density is the ratio of mass to volume. If a uranium nucleus has a radius of 7.4 femtometers and…

A: Given data:- The radius of the uranium nucleus is r = 7.4 femtometers. The nuclear mass of the…

Q: The decay behavior of a radioactive substance obeys first order kinetics: ln(N/No) = –kt, where N is…

A: first order kinetics,lnNN0=-ktwhere N is amount of radioactive nucle at timehalf life=20 min=1200…

Q: The disintegration rate of certain radioactive substance at any instant is 4750 disintegrations per…

A: To find- Half life (T)=?Given-N0=4750N1=2700t=5 min

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A: Given Data: The radius of an atom is, Ra=1.40×10-10 m The cross-sectional area of the target nucleus…

Q: Let the total number of neutrons be Nn, the number of protons be Np, and N = Nn + Np. Let the…

A: Given Let the total number of neutrons be Nn, the number of protons be Np, and N = Nn + Np. Let the…

Q: Determine the number of neutrons in a bromine nucleus, which has a radius of approximately 5.36 ✕…

A: Given Data: The radius of a bromine nucleus is, R=5.36×10-15 m   The equation for the Nuclear…

Q: An unknown radioactive element decays into non-radioactive substances. In 360 days the radioactivity…

A:

Q: A living specimen in equilibrium with the atmosphere contains one atom of 14C (half-life = 5730 yr)…

A: No. of atoms of any sample remaining after a time t is given as: N(t)=N0e-tλ The solution of this…

Q: Alg sample of 1"N is placed in a neutron howitzer with a flux of 1.50 x 104 n/ cm2-s for five days.…

A: Given,  flux=1.50×104 n/cm2.smass=1gThe most probable nuclear reaction 14N7+1n0→ 14c6+ 1P1The…

Q: an alpha particle scattering experiment, it is determined that the ratio of the cross-sectional area…

A:

Q: 234U has an time constant 3.11 x10° years. How long will it take to reduce a sample of 6,571 234 U…

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Q: 5. The control rods for a certain rector are made of cadmium (10 w/o), indium (15 w/o) and silver…

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Q: Consider the following data from the analysis of mercury using cold vapor atomic a spectrometry:…

A: GivenS=1.09 CHg+0.298

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A:

Q: What is the half-life in days of a radioactive sample with 4.9x10¹5 atoms and an activity of 6.5×108…

A:

Q: Determine the number of neutrons in a bromine nucleus, which has a radius of approximately 5.32 ✕…

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A:

Q: Two nuclei have mass number in the ratio 1:8 what is the ratio their nuclear radius

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A: Given: Atomic mass of 73Li=7.016004 u atomic mass of 42He=4.002603 u atomic mass of neutron…

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Q: 28 si + 32 s. He --> Imagine the following nuclear reaction: 14 16 MeV. Its Q-value is: Q=

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Q: Question 84 ."Radium being a member of the uranium series occurs in uranium ores. If the half lives…

A: Solution:-Given thatHalf life of uranium (t12)=4.5×109 yearsHalf life of radium (t'12)=1620 years

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A: apply the concept of radioactive decay and use the decay equations for each isotope.The decay…

Q: The magnitude of the rate of decay of a radioactive material is 0.47 times the square of the amount…

A: Note: answer and explanation is given in step 2 in image format..

Q: The radioactive cobalt isotope, 60Co, has an half-life of 63 months and undergoes decay. The molar…

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Rutherford's scattering experiment

Rutherford’s scattering experiment is also known as the gold foil experiment. This experiment disproved the plum pudding model of J.J. Thomson. In a gold foil experiment, high-energy alpha particles are made to strike a thin gold foil. The scattered alpha particles are detected using a detector. This experiment showed that the positive charge of the atom is at the center. Most of the atom’s mass is also confined to a small volume at the center. This region is known as the nucleus of the atom.