What is the approximate radius of a nitrogen nucleus that has seven protons and seven neutrons?

Q: A radioactive substance has a half-life period of 30 days. What is the disintegration constant ?

A: We know thatλ=ln2T1/2Hereλ=disintegration constantT1/2=Half life of substance

Q: For the real or imaginary nucleus of 19276X, find (a) the net electrical charge of the nucleus, (b)…

A: Here given the real or imaginary nucleus of ¹⁹²₇₆X . We have to calculate the net electrical charge…

Q: Radium decomposes at a rate proportional to the amount present. In 100 years, 100 mg of radium is…

A: Given: The mass of radium is No=100 mg. The reduced radium mass is N(t)=96 mg. Let λ is the decay…

Q: The activity of this sample after 3  half-lives have elapsed is approximately what?

A:

Q: What is the relationship between decay constant and mean life of a radioactive nucleus?

A: The mean life of a radioactive nucleus is calculated by using the formula τ=1λ , where λ is the…

Q: Why is a neutron stable inside the nucleus? (In free space, the neutron decays in 900 s.)

A: Inside the nucleus, the neutron is present with protons. A neutron decays into proton, neutron and…

Q: Two nuclei have mass numbers in the ratio 1: 2. What is the ratio of their nuclear densities?

A: The radius of the nucleus is given by  R = Ro A13 where, A is the mass number and R is the constant.…

Q: Consider the 6429Cu nucleus. Find approximate values for the following. (a) radius fm (b) volume m3…

A: The nuclear radius can be approximated by the formula- R=r0(A)13, where r0=1.25 fm           A is…

Q: If one neutron is added to a helium nucleus, the result is

A: in nuclear reaction mass number and atomic number both conserved

Q: Calculate the mass defect and the binding energy of the deuterium

A: We know: Mass of hydrogen, MH=1.007941 amu Mass of proton, MP=1.007941 amu Mass of neutron,…

Q: A student carries out a radioactive decay experiment. She measures the activity of a source as a…

A: Dear student Activity is defined as rate of radioactive decay of nuclei. It is denoted by  R = ¥ N…

Q: Manganese-52 has a half-life of 6 days. How many days would a scientist have to wait for the…

A: The radioactivity decay of a sample has a relationship given by:Nt=N0e-λt………(1)where,N0 is the total…

Q: What is the function of the moderator in a nuclear reactor?

A: To sustain nuclear chain reaction, nuclear reactor must works in its critical state. So, that to…

Q: Two nuclei have mass number in the ratio 1 : 3. What is the ratio of their nuclear densities?

A: Given that, Two nuclei have the mass number in the ratio 1 : 3. The nuclear densities of nuclei A is…

Q: In terms of biological damage, how many rad of heavy ions are equivalent to 100 rad of x - rays?

A: Write the expression for the biological damage caused by the X-rays with a quality factor of 1.

Q: A radioactive substance is found to register 5000 counts per second on a Geiger counter.…

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Q: To minimize neutron leakage from a reactor, the ratio of the surface area to the volume should be a…

A: a) For the case of sphere,

Q: If we have a nucleus (A = 110), its volume is?

A: Here, it is given that, a nucleus has A = 110. We have to find its volume . Let’s see how we will…

Q: If the energy in fusion bombs were used to supply the energy needs of the world, how many of the…

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Q: Consider the nucleus. Find approximate values for its (a) radius, (b) volume, and (c) density

A: The expression for the nuclear radii,

Q: When thorium decays by emitting a beta particle, what is the atomic number of the resulting nucleus?

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Q: Binding energy per nucleon for an element is 7.14 MeV. If the binding energy of the element is 28.6…

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Q: Consider the 2965Cu nucleus. Find approximate values for its (a) radius, (b) volume, and (c)…

A: (a) Radius is,

Q: When radium 226 decays emitting an alpha particle, what is the atomic number and atomic mass of the…

A: The alpha particle having mass number 4 and atomic number 2 and it is a helium nucleus.

Q: What is the optimum temperature for D-T fusion reaction rate?

A: question asked: Optimum temperature required for Deuterium - Tritium fusion reaction.

Q: Approximately what is value of A for a nucleus whose radius is 4.7x10^-15 m

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Q: A radioactive substance has a half-life period of 30 days. What is the disintegration constant?

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Q: A sample of a radioactive substance has an initial mass of 63.3 mg. This substance follows a…

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Q: The most common kind of element nucleus has A = 62.                      What is the approximate…

A: The radius of the nucleus of an element is directly proportional to the third root of Mass number(A)…

Q: What is rate of decay after 2.5 seconds?

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Q: use Heisenberg's uncertainity principle to estimate the kinetic energy (in MeV) of a nucleon bound…

A: Given data: Radius of nucleus is, r=10-15 m.

Q: What is the half-life of a radioactive isotope if the activity of a sample drops from 6,080 cpm to…

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Q: A radioactive material decomposes half of its amount per minute. If after 2 mins, 100% undecayed…

A: Half of amount decay in 1 min

Q: What is the radius of an α particle? (answer in fm)

A: An alpha particle is a helium nucleus.  The radius of a nucleus is given by, R=R0A13 Here, R0 is a…

Q: Because a nucleon is confined to a nucleus, we can take the uncertainty in its position to be…

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Q: If the half life of an element is 32.2 years, how many years it take for a sample to decay to the…

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Q: You find a 37.2 g fossilized bone that has an activity of 0.024 counts per second. How old is the…

A: A living matter has 1.3×10-10 % of C-14, and the half-life of C-14 is 5730 years. Thus, determine…

Q: What is the activity (in particles/s) of a sample of Carbon-14 that contains 4.109E+21 nuclei?

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Q: A substance decays according to the formula Q = 24(0.5)"2.4, where t is in weeks. (a) What is its…

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Q: Estimate the density of a nucleus by calculating the density of a proton, taking it to be a sphere…

A: Given :  diameter of proton , d = 1.2 fm = 1.2 × 10-15 m              Actual density of nucleus, ρN…

Q: In order to minimize neutron leakage from a reactor, the ratio of the surface area to the volume…

A: (a) The ratio of the surface area (A) and the volume (V) of the sphere of the radius a can be…

Q: A neutral argon atom has how many neutrons?

A: Given data:  Neutral argon Atomic number (Z) = 18 Mass number (A) = 39.948 ≈ 40 Required: Number of…

Q: What is the radius of an α particle?

A: Radius of an alpha particle is approximately 1.8×10^-15 Or 1.8 fermi.