Chemistry, 09.04.2020 21:11 JOHNDoe3443
If the core electrons were 100% effective at shielding the valence electrons from the nuclear charge and the valence electrons provided no shielding for each other, what would be the effective nuclear charge felt by valence electrons in:a. Na:b. S:c. Cl:
Answers: 1
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Cobalt-60 is an artificial radioisotope that is produced in a nuclear reactor and is used as a gamma-ray source in the treatment of certain types of cancer. if the wavelength of the gamma radiation from a cobalt-60 source is 1.00 × 10-3 nm, calculate the energy of a photon of this radiation.
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Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part
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Chemistry, 22.06.2019 23:00
In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?
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If the core electrons were 100% effective at shielding the valence electrons from the nuclear charge...
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