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A radioactive sample has a half-life of 28.1 y. 18 98.0 39 of the sample were allowed to decay for 27.0 y, what would the activity of the remaining sample be ? ? 24 a. 53.739 b. 7.35 89 ✓ C. 50.4 39 d. 0.735 89 e 537 B9

A radioactive sample has a half-life of 28.1 y. 18 98.0 39 of the sample were allowed to decay for 27.0 y, what would the activity of the remaining sample be ? ? 24 a. 53.739 b. 7.35 89 ✓ C. 50.4 39 d. 0.735 89 e 537 B9

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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EX A radioactive sample has a half-life of 28.1 y. 18 98.0 39 of the sample were allowed no to decay for 27.0 y, what would the activity of the remaining sample be? wof fals A 5 a. 53.739 6. 7:35 89 ✓ C. 50.4 39 d. 0.735 39 e 537 39 a. 1.208 x 1013 J b. 2.810 x 1013 J 1.802 x 10³ J 1.028 x 10¹³ J e. 2. 180 X 10³ J g: 2. a. 60 h 30 h 45h 10 h ن من فن се c 0.2002 For every mole of radioactive sample that decays, g of mass is lost. How much energy is given off per mole of radioartive sample reacted? shotod 21lgus fut Das 20h COLA I 20 Apel Az A sample of radon has an activity of 80,000 39. If the half-life of redon is is h, how long before the sample is activity is 5,000 89? que ELINT 10 FO
Transcribed Image Text:EX A radioactive sample has a half-life of 28.1 y. 18 98.0 39 of the sample were allowed no to decay for 27.0 y, what would the activity of the remaining sample be? wof fals A 5 a. 53.739 6. 7:35 89 ✓ C. 50.4 39 d. 0.735 39 e 537 39 a. 1.208 x 1013 J b. 2.810 x 1013 J 1.802 x 10³ J 1.028 x 10¹³ J e. 2. 180 X 10³ J g: 2. a. 60 h 30 h 45h 10 h ن من فن се c 0.2002 For every mole of radioactive sample that decays, g of mass is lost. How much energy is given off per mole of radioartive sample reacted? shotod 21lgus fut Das 20h COLA I 20 Apel Az A sample of radon has an activity of 80,000 39. If the half-life of redon is is h, how long before the sample is activity is 5,000 89? que ELINT 10 FO
Energies of gamma rays are typically expressed in units of megaelection volts (MeV), where 1 MeV= N.602 x 10³ J. Energies of gamma rays emitted when oxygen -13 gives off a beta particle is 0.168 MeV. What is its energy in joules ن من وة د ✓a. 2.69 x 10⁰4 231 a. 87 Fr с. ј 5.01 X 10¹2 1-05 X 15-12- J J d. 0.51 x 10th 6.29 x 10-12 J endt 12 703 Actinium has an atomic number of 89. When emits an alpha particle, actinium-227 is the resulting daughter isotope. 239 b. 2 ha C. obl.02 231945 pa Foo ودانحصاه مدت باره ام ped J. 233Rn " PS c). 86A J 2311 e. 2003 NP 93' J Place d 6 O Pq ZEF O bi 361 x 1024 2 301 x 081 Vibo no sed note to samoz A noby 20 271 WAN SH21 PE Hliviton 21 avamiss one stoped b
Transcribed Image Text:Energies of gamma rays are typically expressed in units of megaelection volts (MeV), where 1 MeV= N.602 x 10³ J. Energies of gamma rays emitted when oxygen -13 gives off a beta particle is 0.168 MeV. What is its energy in joules ن من وة د ✓a. 2.69 x 10⁰4 231 a. 87 Fr с. ј 5.01 X 10¹2 1-05 X 15-12- J J d. 0.51 x 10th 6.29 x 10-12 J endt 12 703 Actinium has an atomic number of 89. When emits an alpha particle, actinium-227 is the resulting daughter isotope. 239 b. 2 ha C. obl.02 231945 pa Foo ودانحصاه مدت باره ام ped J. 233Rn " PS c). 86A J 2311 e. 2003 NP 93' J Place d 6 O Pq ZEF O bi 361 x 1024 2 301 x 081 Vibo no sed note to samoz A noby 20 271 WAN SH21 PE Hliviton 21 avamiss one stoped b
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