Concept explainers
Interpretation:
The isotope which is likely to be more radioactive between Nitrogen-14 and Nitrogen-13 should be identified.
Concept Introduction:
The isotopes with the unstable nucleus of an element are converted to a stable nucleus by emitting radiation in the form of beta, alpha, or gamma radiation is said to be a radioactive isotope.
Interpretation:
The isotope which is likely to be more radioactive between Phosphorus-31and Phosphorus-33 should be identified.
Concept Introduction:
The isotopes with the unstable nucleus of an element are converted to a stable nucleus by emitting radiation in the form of beta, alpha, or gamma radiation is said to be a radioactive isotope.
Interpretation:
The isotope which is likely to be more radioactive between Lithium-7 and lithium-9 should be identified.
Concept Introduction:
The isotopes with the unstable nucleus of an element are converted to a stable nucleus by emitting radiation in the form of beta, alpha, or gamma radiation is said to be a radioactive isotope.
Interpretation:
The isotope which is likely to be more radioactive between Calcium-39 and calcium-40 should be identified.
Concept Introduction:
The isotopes with the unstable nucleus of an element are converted to a stable nucleus by emitting radiation in the form of beta, alpha, or gamma radiation is said to be a radioactive isotope.
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Introduction to General, Organic and Biochemistry
- For each pair of elements listed, predict which one has more stable isotopes. (a) Ni or Cu (b) Se or Sb (c) Cd or Auarrow_forwardWrite the following isotopes in nuclide notation (E.g., " C614 ")? (a) oxygen-14. (b) copper-70. (c) tantalum-175. (d) francium-217arrow_forward14C is used in carbon dating of artifacts. Determine the number of protons and neutrons in 14C.arrow_forward
- Write appropriate symbols for the following particles using the ZAX symbolism: a.A tin-117 nucleus b.A nucleus of the chromium (Cr) isotope containing 26 neutrons c.A nucleus of element number 20 that contains 24 neutronsarrow_forwardWhat is the nuclide symbol for the nucleus that contains 11 protons and 12 neutrons?arrow_forwardFrancium was discovered as a minor decay product of actinium-227. Write the nuclear equation for the decay of actinium-227 by alpha emission.arrow_forward
- Which of the following are isotopes of element X, the atomic number for which is 9: 919X, 920X, 189X, and 921X?arrow_forwardWhat are the types of radiation emitted by the nuclei of radioactive elements?arrow_forwardDetermine the nuclear composition (number of protons and neutrons) of the following isotopes. (a) chromium-52protonsneutrons (b) gallium-69protonsneutrons (c) cadmium-114protonsneutrons (d) barium-138protonsneutrons (e) uranium-238protonsneutronsarrow_forward
- which of the isotopes in each of the following pairs is more abundant. (а) 1°В or в (b) °Li or 'Li (c) 1"N or 1SN (d) 2°Ne or 2°Nearrow_forwardAll the stable isotopes of boron, carbon, nitrogen, oxygen,and fluorine are shown in the accompanying chart (inred), along with their radioactive isotopes with t1/2 >1min (in blue). (a) Write the chemical symbols, includingmass and atomic numbers, for all of the stable isotopes. (b)Which radioactive isotopes are most likely to decay by beta emission? (c) Some of the isotopes shown are used in positronemission tomography. Which ones would you expectto be most useful for this application? (d) Which isotopewould decay to 12.5% of its original concentration after 1hour?arrow_forward2.arrow_forward
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