Naturally occurring lead exists as four stable isotopes: 204X with a mass of 203.973 amu (1.4806);...

   

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Naturally occurring lead exists as four stable isotopes: 204X with a mass of 203.973 amu (1.4806); 206X 205.974 amu (23.60%); 207X 206.9759 amu (22.60%); and 20X 207.9766 amu (52.30%). Calculate the average atomic mass of X. 68.9257 amu is the mass of 60.4% of the atoms of an element with only two naturally occurring isotopes. The atomic mass of the other isotope is 70.9249 amu. Determine the average atomic mass of the element? Identify the element? Give the nuclear composition and isotopic notation for a, an atom containing 27 protons, 32 neutrons, and 27 electrons b. an atom containing 15 protons, 16 neutrons, and 15 electrons c. an atom containing 110 neutrons, 74 clectrons, and 74 protons d. an atom containing 92 electrons, 143 neutrons, and 92 protons Ekment of of ef Atomie Atomic Rumber Protons Neutrons electrees mass 10 15 28 31 210 Ca 13 10 Naturally occurring lead exists as four stable isotopes: 204X with a mass of 203.973 amu (1.4806); 206X 205.974 amu (23.60%); 207X 206.9759 amu (22.60%); and 20X 207.9766 amu (52.30%). Calculate the average atomic mass of X. 68.9257 amu is the mass of 60.4% of the atoms of an element with only two naturally occurring isotopes. The atomic mass of the other isotope is 70.9249 amu. Determine the average atomic mass of the element? Identify the element? Give the nuclear composition and isotopic notation for a, an atom containing 27 protons, 32 neutrons, and 27 electrons b. an atom containing 15 protons, 16 neutrons, and 15 electrons c. an atom containing 110 neutrons, 74 clectrons, and 74 protons d. an atom containing 92 electrons, 143 neutrons, and 92 protons Ekment of of ef Atomie Atomic Rumber Protons Neutrons electrees mass 10 15 28 31 210 Ca 13 10

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Q1 Isotope abundance Atomic mass amu X204 1480 203973 X206 2360 205974 X207 ... View the full answer