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Concept explainers
Interpretation:
Series of emissions occur from
Concept Introduction:
Alpha particle
General equation for alpha decay is as follows:
Here,
Beta emission
The generic equation of the beta decay is as follows:
Here,
Gamma rays
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Chapter 18 Solutions
FOUND.OF COLLEGE CHEMISTRY
- Francium was discovered as a minor decay product of actinium-227. Write the nuclear equation for the decay of actinium-227 by alpha emission.arrow_forwardA radioactive metal atom decays (goes to another kind of atom) by emitting an alpha particle (He2+ ion). The alpha particles are collected as helium gas. A sample of helium with a volume of 9.050 mL was obtained at 765 mmHg and 23C. How many atoms decayed during the period of the experiment?arrow_forwardWrite a balanced nuclear reaction for the decay of tin-127 by beta particle Draw a skeletal structure for the molecule 1,7-dibromo-3-ethyl-4-propyloctane For the balanced reaction Mn2(SO4)5(aq) + 10LiOH(aq) --> 2Mn(OH)5(s) + 5Li2SO4(aq)how many grams of lithium sulfate are produced by this reaction if 148 g of manganese (V) hydroxide are also produced?arrow_forward
- How long (in hours) would it take to disintegrate 3.17 × 1017 atoms from a 12.0-mCi (millicurie) source?arrow_forwardWrite balanced equations for the decays of 11C and 15O, both of which are used in positron emission tomography to scan the uptake of glucose in the body.arrow_forwardThe radioisotope 41Ar decays by β-(negative beta) emission to an excited levelof 41K that is 1.293 MeV above ground state. What is the maximum kinetic energy of the emitted β-particle?arrow_forward
- . What will be the systematic name and atomic symbol given toa. element 202b. element 136arrow_forwardWrite down the nuclidic symbol and percentage abundances of all the nuclides having atomic number 7, 23, and 38.arrow_forwardIf 1.000 g of 226/88 Ra produces 0.0001 mL of the gas 222/86 Rn at STP (standard temperature and pressure) in 24 h, what is the half-life of 226Ra in years?arrow_forward
- High mass stars fuse heavier and heavier elements, starting with Hydrogen, Helium, and Carbon. It keeps going up until it hits iron (Fe). Then it stops. Why does it stop there? Why doesn't it go on to uranium or neptunium?arrow_forward18. A particular isotope has a k= 1.24 x 10 ³ yr1 for decay by ß emission. How long would it be before you could dispose of this sample?arrow_forwardThe properties of a radioisotope are important to consider when using in a medical setting. State and explain why 99mTc is used in preference to 123I for investigating cerebral blood flow in a brain scan. Include in your answer radiological reasons e.g. radiation emitted and half-life and biological properties (how the isotopes interact with the human body).arrow_forward
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