half-life of element

Q: Radon-222 releases an alpha particle. What element results and what is its mass number

A: Let us understand the problem at first The atomic number of radon-222 is 86 and the mass number is…

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: In the reaction shown, the Cm is known as the _____ nucleus, and the Pu as the _____ nucleus. Cm Pu…

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Q: What is the decay constant of an element with a half-life of 2.73 x 105 years? 7.76 x 10-14 s 7.15 x…

A: Given that:The half life of an element ist1/2=2.73×105 years

Q: The highest value of binding energy per nucleon has element_ O iron O sulfur O hydrogen O uranium

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Q: Using the data shown in the table, calculate the path radius of the Cat ion. Ca path radius: m…

A: Express the kinetic energy, KE, acquired by the ion accelerated through a potential difference of…

Q: In which of the types of decay does a proton turn into a neutron like the one shown below? A: +beta…

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Q: Q6: A fission reactor accident evaporates 5 x 106 Ci of 90Sr (T1/2= 27.7 yr) into the air. The 90Sr…

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Q: Identify the following decay process: 226 Ra → 88 222Rn+He 86 O a. alpha decay Ob.beta plus decay…

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Q: Answer with true or false of the following: i The mumber of protons in a nucleus is called the…

A: Please note : As per answering guidelines I can answer the first three questions in a set of…

Q: Gallium-67 is a radioactive isotope used in treatment of lymphomas. If 63.5% of a 6'Ga sample…

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Q: 6. The internal conversion process is more probable in . nuclei than in other nuclei. (a) light (b)…

A: Internal conversion is a nonradiative decay process where an atom in excited state…

Q: Elements that appear in the same column of the periodic table often share similar chemical…

A: Part(a) The path radius of the Ca+ ion. part(b) Identify the paths magnetic fieldB=0.552…

Q: Can carbon-14 dating be used to measure the age of a rock? Explain.

A: Carbon dating is a method which is used to find age of objects younger than 50,000 years.

Q: Radium decomposes approximately at a rate proportional to the present. If 100g now, will be 96g a…

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Q: 7. Write the nuclear reaction for the formation of 208 Pb from 228Th which follows a series of…

A: In α decay: In β- decay:

Q: Fina the binding energy ana the binding energy per nucreon of the B nucieus. 4

A: Given data :                    Atomic number of Beryllium, Z = 4                         (Note : Z…

Q: The half life of 92U 238 against alpha decay is 4.5x109 years. Find the activity of 1 kg of 92U 238

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Q: The nucleus of an unknown isotope decays to another unknown isotope after 3 sequences of different…

A: The emission of an alpha particle from an element forms a new element with two fewer protons and two…

Q: 1 The activity of a radioactive element reduces to th 16 of its original value in 30 years. Find the…

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Q: A parent atom decays and the daughter atom has one more proton than the parent. The most likely…

A: When negetive beta decay happened then as a result in daughter nucleus the proton is one more than…

Q: A radioactive sample contains 5.50g of pure N(7, 13), which has a half-life of 10 min. Calculate the…

A: We need to calculate activity after 2 hours and whether this isotope is useful for dating for 10…

Q: hen radium-226 (Z = 88) decays to radon-222 (Z=86), the other particle emitted is     an alpha…

A: Given information: The radium nucleus is, 88226Ra  This decays into radon nucleus, 86222Rn

Q: Radioactivity Basics: When a ß particle is emitted from an unstable nucleus, the atomic number of…

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Q: Cobalt-60 emits a negative beta particle and the new nucleus formed is: O Iron-59 Iron-60 Nickel-60…

A: Given data: Initial nucleus = Cobalt-60 emits negative beta particle Required: The new nucleus…

Q: ____17. When an atom is a gamma ray emitter, the atom releases: ________________.  ____18. The time…

A: 17. When an atom is a gamma ray emitter, the atom releases photons   It can then decay to a lower…

Q: Give the relationship between the decay constant and the half-life?

A: half life of radio active decay is the time taken to disintegrate the nuclei in to half of actual…

Q: After undergoing alpha decay, an atom of radium 226 becomes____.

A: Given:  Ra - 226  alpha decay

Q: Atoms with Z > _____ are radioactive and decay in one or more steps involving mostly alpha and beta…

A: We know that the atomic number is the number of protons in an element found in nucleus. And we also…

Q: 2) A radioactive sample reduced to 35% of its initial value in 2 hours. Calculate the half life of…

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Q: Gadolinium-149 decays through alpha decay and forms samarium-145. Estimate the kinetic energy of the…

A: During alpha decay, the unstable nucleus will release an alpha particle, which is a helium nucleus…

Q: Li('H,*He)? "CCH,?);N Te(?, H)I 12 122 52 124 53

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Q: 3. A certain decaying radioactive substance is observed in a laboratory, and after 2 hours it is…

A: decay constant can be calculated from the expression of number of nuclei present after time t,…

Q: Discuss the merits of using high energy electrons to determine nuclear radii rather than using alpha…

A: Electrons are not subject to the strong nuclear force so electron scattering patterns are easier to…

Q: 7. Copper-64 emits a beta particle and the new nucleus formed is: O Nickel-65 O Nickel-64 Nickel-63…

A: Factual information :  Copper-64 on beta decay forms Zinc-64.

Q: 226 6. Given that 1.0 g of Ra has a nominal activity of 1 Ci, find the half-life of 226 Ra. Marie…

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Q: Explain  the  term half life

A: Half life: Half life of the radio active substance is the time that it takes half of a given number…