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Topic Radioactivity
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- Fixed Number of Protons, Neutrons and Electrons (Radio-01)Fixed The Number of The Protons, Neutrons and Electrons the following: Nuclear power plants
Number of … Protons Neutrons Electrons 31H 52He 13C 234U 13C2+ 34S2- 4He2+ 17O 200Au+ 78Br– - 1
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- Percentage ratio 1 (Radio-02)More natural Carbon exists to 98.94% from 12C, The Remains of which: from 13C (m=13.003355 u).
- Calculate from This Values The to Expected Average Carbon mass.
- What ? can from to the the actual Value of 12.0107 (Value from to the PSE) Locked back will be?
- Calculate The to Expected Average Carbon mass with The The idea, that The Masses of m(12C)=12u and m(13C)=13u amount.
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- Percentage ratio 2 (Radio-03)This Elements Chlorine exists from two Isotopes: 35Cl Responsibility. 37Cl. m(35Cl) = 34.969 u, Hfrequency = 75.77%, m(37Cl) = 36.966 u.
Calculate of which: The Average Weight and Interpreting This Results. - 1
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- Percentage ratio 3 (Radio-04)Bromine I 'm going . in The Nature as Mixed The Both Stable isotopes 79Br and 81Br on. Hfrequency: 79Br to 50.65%, m = 78.918338 u. Calculate from The Average molar mass of the Manufacture in which all the materials used are: Now The Hfrequency and The Weight of the 81Br in u and g/mol.
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- Percentage ratio 4 (Radio-05)One of them Elements exists from a Mixed from three Isotopes, Whereas The Both lighter isotopes The equal to Hfrequency have. The molar masses The three isotopes be also known.
Calculate of which: The Common Formula The Average molar mass of the Elements. - 1
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- Common 1 (Radio-07)What ? is The three Of a thickness of not more than 10 mm 28Si, 29Si, 30Si jointly, What ? is different?
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- Percentage of Hfrequency 1 (Radio-08)In which Percentage Shares lying 28Si and 29Si before, where: The Share by weight in Percentage of 30Si 3.1 % is?
Notes: m(28Si) = 27.9769 u, m(29Si) = 28.9765 u, m(30Si) = 29.9738 u - 1
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- Supposedly equal to molecules, But Different Weight, radioactivity (Radio-09)By The reaction of Bromine with Hydrogen is generated Bromine hydrogen gas (HBr). The following: isotopes participating The Commission to The reaction: 1H, 2H, 79Br and 81Br .
- How is The Balanced reaction equation?
- How many various HBr-molecules with of different Weight will be In this case of which:?
- What ? Isotope combination would be This The easiest HBr, which This most severe HBr-molecule? Indication Including molar mass
Assumptions for The molar masses: They Calculated The Commission with The Simplification, that m(Proton) = m(Neutron). This means that Applicable the following::
M(1H) = 1 g/mol, M(2H) = 2 g/mol, M(79Br) = 79 g/mol and and M(81Br) = 81 g/mol. - 1
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- Calculate The Core diameters (Radio-10)Estimates The Diameters The the following Cereals from:
- 3H
- 40K
- 235U
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- Plot Manufacture (Radio-11)Drawing The Graph the following: Function r = 1.2·10-15·A(1/3) (Results in Meters)
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- Density Helium nuclei (Radio-12)Calculate The Density One of them Helium nuclei ( 4He )
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- Define (In general) The Different Potential for decomposition (Radio-20)
Define In general The the following Disposals. Use the following: Schedule:
A → B + C, Whereas In the case of All of them Particles The atomic number and The mass number indicated will be It should be.- alpha decay
- beta-minus decay
- beta-plus decay
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- Different Disposals 1 (Radio-21)Supplements the following: Table, by: in The Cell contents This This is the case for Elements after to the Disintegration written will be. One of them. Line is Yes, I did. given, Supplement The Other Cell contents accordingly.
Respect: It 's is I 'm good possible, that The of a kind to be recorded Disposals in The The reality Not at all not to take place, Here you go. Goes It 's 'It 's just …' to The Application The Theoretical Disposals.
Disintegration: alpha decay beta-minus decay beta-plus decay 13C 94Be 137N 135B 17O 240U 232Th 200Au 214Pb - 1
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- What Elements (Radio-22)This Elements x (mass number 214) decomposed after a alpha decay in three identical Cereals y (atomic number 26). Supplements y by: The atomic number and mass number and Write The complete Decomposition reaction on.
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- What Doing (Radio-23)Es be given in each case a (Purified) Flat-rolled products of iron or steel, Manufacture in which the value of all the materials used does not exceed 50% of the ex-works price of the product and Manufacture from materials of any heading. On the One It should be It's The Commission to set, The Other eating and From the Third may It's The Commission in so far as How possible Removing. What ? It should be It's Doing?
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- half-life 1 (Radio-30)The half-life ('HWZ') One of them Isotopes of which: 10 years. After How many years (expressed as in 'Full-multiple The HWZ') is of The originally of which: Number of Atoms Not yet the following: Quantity received
- The Heleventh
- a Quarter
- a 128- What is this?
- about. 1 Percentage
- about. 1 Prometheus
- about. a One millionth
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- half-life, Weight (Radio-31)Fictional Adopted: Prior to 10 Billions of dollars years would have 10 Billions of dollars kg 244Pu exists, of which: HWZ 8.3·107 years of which:.
How many Nuclear power plants are Today of The of origin 244Pu Not yet of which:? - 1
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- Determination of age 1 (Radio-40)How old is One Sampling, The One 8-I 'll take it . deeper 14C-Konzentration contains as a Not yet living The organism (HWZ(14C)= 5730 years)
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- Determination of age 2 (Radio-41)How many 14C Atoms contains 1 g Carbon, The 5730 years old is. Notes: One current ('of Today') Sampling I have a Proportion of 14C/12C of 1.2·10-12.
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- Determination of age 3 (Radio-42)What ? for a Time-span is with The 14C-Methode Available. The following: Adopted: The Limit of measurement be about. 1000 I 'll take it . small as The Concentration to 14C, which in living Other organisms demonstrated will be can.
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- Determination of age 4 (Radio-43)In the living The organism Measures It's about. 16 Disposals for each Seconds . for each Grams Carbon. In a old Furnished wood, which 5 g Carbon contains, Measures It's 44 Disposals for each Seconds .. How old is This Furnished wood.
Adopted: Linear Disintegration between two half-lives, T1_2(C) of which: 5730 years. - 1
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- Determination of age 5 (Radio-44)In a Fresh Woven fabrics of cotton will be 0.27 Bq measured.
a) In the Turinese Tombcloths will be 0.25 Bq measured. How old is This Clothes This means that?
b) In a Other Tissue will be 0.1 Bq measured. How old is This Tissue?
Es Applicable The Adopted, that between two half-lives a Linear Disintegration occurs. - 1
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- Loss of mass 1 (Radio-50)Our The Sun has One Performance of 3.82·1026 W. How Large is This means that The Loss of mass for each Seconds .?
Notes: [W] = [J/s] = [kg·m2/s2] - 1
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- Loss of mass 2 (Radio-51)Es will be a Grams 23592U in full Split.
a) Calculate The freeing Energy for each Grams. Proposed Split Nuclear energy will be in each case One Energy of 200 MeV Free.
Notes: 1of which: = 1.602·10-19 J
b) How high could It's with This Energy a Car (m = 1000 kg) lifting? - 1
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- Loss of mass 3 (Radio-52)Es will be a Grams 23592U in full Split. Proposed Grams will be about. 8.21·1010 J Energy Free, Look at this. In addition also One previously exercise. The Switzerland required in The the last 5 years Average round 810'000 Terahjoule Energy for each year. Supposedly, These Energy would like to It's exclusively with The Divisions of 23592U winning. How Large would be One This is the case for 'Uranium ores'?
FThe Commission shall adopt a decision. The calculation will be Other Dates Required:- 1 Terahjoule = 1012 Joule, Containing by weight:: 8.1·1017 J
- Other Sources Speaking of 2.04·1017 J
- Density Uranium ores 19.1 g/cm3
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