An isotope of potassium has the same number of neutrons as argon-40. Write this potassium isotope in nuclear notation.
Answer to relevant QuestionsA basement room containing radon gas (t1/2 = 3.82days) is sealed to be airtight. (a) If 7.50 x 1010 radon atoms are trapped in the room, estimate how many radon atoms remain in the room after one week. (b) Radon undergoes ...Which one of each of the following pairs of nuclei would you expect it to be easier to remove a neutron from: (a) 168O or 178O; (b) 4020Ca or 4220Ca; (c) 105B or 115B; (d) 20882Pb or 20983Bi? State your reasoning for ...Near high-neutron areas, such as a nuclear reactor, neutrons will be absorbed by protons (the hydrogen nucleus in water molecules) and will give off a gamma ray of a characteristic energy in the process. (a) Write the ...One isotope of uranium has a mass number of 235, and another has a mass number of 238. What are the numbers of protons, neutrons, and electrons in a neutral atom of each isotope? The experimental expression for the (approximate) radius (R) of a nucleus is R = RoA1/3, where and A is the mass number of the nucleus. Assuming that nuclei are spherical (they are approximately so in many cases), (a) ...
Post your question