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What is the source of radioactive `CO_(2)` in the atmosphere?
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What is the source of radioactive `CO_(2)` in the...
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Jan 2, 2022
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JackTerrance
What is the source of radioactive C O 2 C in the atmosphere? Select the correct answer from above options
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Jan 2, 2022
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JackTerrance
. 7 N 14 . is hit by cosmic ray neutrons to produce . 6 C 14 . which is radioactive and is oxidized to produce radioactive X O 2 X .
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Q: The `beta-` activity of a sample of `CO_(2)` prepared form a contemporary wood gave a count rate of `25.5` counts per minute `(cp m)`. The same of `CO
The β − β activity of a sample of C O 2 C prepared form a contemporary wood gave a count rate of 25.5 25 ... which is 4000 year old? Select the correct answer from above options...
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Q: The half life for radioactive decay of `.^(14)C` is 5730 years. An archaeological artifact containing wood had only `80%` of the `.^(14)C` found in a
The half life for radioactive decay of .14C is 5730 years. An archaeological artifact containing wood had only 80% ... of the sample. Select the correct answer from above options...
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Jan 4, 2022
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JackTerrance
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Q: Describes the properties of radiations which are emitted by radioactive nuclei.
Describes the properties of radiations which are emitted by radioactive nuclei. Select the correct answer from above options...
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Q: Write the nuclear reactions for the following radioactive decay: (a) `._(92)U^(238)` undergoes `alpha-` decay. (b) `._(91)Pa^(234)` undergoes `Beta-`
Write the nuclear reactions for the following radioactive decay: (a) . 92 U 238 . undergoes α − α decay. (b) . 91 ... B η + B decay. Select the correct answer from above options...
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Jan 2, 2022
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Q: How are radioactive decay series distinguished ? Name the decay series which is not natural but artifical.
How are radioactive decay series distinguished ? Name the decay series which is not natural but artifical. Select the correct answer from above options...
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Jan 2, 2022
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JackTerrance
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Q: The isotopic composition of rubidium is `Rb^(85):73%` and `Rb^(87):28%Rb^(87)` is weakly radioactive and decay by `beta^(c-)-` emission with a decay c
The isotopic composition of rubidium is R b 85 : 73 % R and R b 87 : 28 % R b 87 R is ... pollucite stating any assumption made. Select the correct answer from above options...
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Jan 2, 2022
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Q: The radioactive isotope `._(27)^(60)Co` which has now replaced radium in the treatment of cancer can be made by `a(n,p)` or `(n, gamma)` reaction. For
The radioactive isotope . 60 27 C o . which has now replaced radium in the treatment of cancer can be made by a ( n , ... in s − 1 s . Select the correct answer from above options...
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Jan 2, 2022
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Q: What is the effect of temperature and pressure on the rate of radioactive disintegration ?
What is the effect of temperature and pressure on the rate of radioactive disintegration ? Select the correct answer from above options...
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Jan 2, 2022
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JackTerrance
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Q: Why do radioactive element decay?
Why do radioactive element decay? Select the correct answer from above options...
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Jan 2, 2022
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Q: What is the total life of a radioactive element ?
What is the total life of a radioactive element ? Select the correct answer from above options...
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Jan 2, 2022
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Q: Which radioactive metal is used as an ingredient of atomic explosive weapons ?
Which radioactive metal is used as an ingredient of atomic explosive weapons ? Select the correct answer from above options...
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Jan 2, 2022
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JackTerrance
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Q: `C-14` is formed in the upper atmosphere. Why it does not occur at the ground level ?
C − 14 C is formed in the upper atmosphere. Why it does not occur at the ground level ? Select the correct answer from above options...
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Jan 2, 2022
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Q: A piece of wood from an archaeological source shows a `.^(14)C` activity which is `60%` of the activity found in fresh wood today. Calculate the age o
A piece of wood from an archaeological source shows a . 14 C . activity which is 60 % 60 of the activity found in ... C = 5570 . year) Select the correct answer from above options...
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Jan 2, 2022
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Q: Calculate the molarity of eaCHM of the following solutions `:` `a. 30g` of `Co(NO_(3))_(2).6H_(2)O` in `4.3L` of solution `b. 30mL` of `0.5 M H_(2)SO_
Calculate the molarity of eaCHM of the following solutions : a.30g of Co(NO3)2.6H2O in 4.3L of solution b ... diluted to 500mL . Select the correct answer from above options...
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Jan 5, 2022
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JackTerrance
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Q: Calculate the mass of urea `(NH_(2)CONH_(2))` required in making `2.5 kg `of `0.25 `molal aqueous solution.
Calculate the mass of urea (NH2CONH2) required in making 2.5kg of 0.25 molal aqueous solution. Select the correct answer from above options...
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Jan 5, 2022
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JackTerrance
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