a) An element has two naturally occurring isotopes. Isotope l has a mass of 120.9038 u and a relative abundance of 57.4%, and isotope 2 has a mass of 122.9042 u. Find the atomic mass of this element and identify it. b) Sulfur has four naturally occurring isotopes with the following masses and natural abundances: Isotope Mass (u) Abundance (%) S-32 31.9721 94.99 S-33 32.9715 0.75 S-34 33.9679 4.25 S-36 35.9671 0.01 Calculate the atomic mass of sulfur and sketch its mass spectrum. c) Write symbols of the form X-A (e.g., C-13) for each isotope. a. the silver isotope with 60 neutrons b. the silver isotope with 62 neutrons c. the uranium isotope with 146 neutrons d. the hydrogen isotope with l neutron d) Determine the number of protons and neutrons in each isotope. a) 14-7 N b) 23-11 Na c) 222-86 Rn
a) An element has two naturally occurring isotopes. Isotope l has a mass of 120.9038 u and a relative
b) Sulfur has four naturally occurring isotopes with the following masses and natural abundances:
Isotope Mass (u) Abundance (%)
S-32 31.9721 94.99
S-33 32.9715 0.75
S-34 33.9679 4.25
S-36 35.9671 0.01
Calculate the atomic mass of sulfur and sketch its mass spectrum.
c) Write symbols of the form X-A (e.g., C-13) for each isotope.
a. the silver isotope with 60 neutrons
b. the silver isotope with 62 neutrons
c. the uranium isotope with 146 neutrons
d. the hydrogen isotope with l neutron
d) Determine the number of protons and neutrons in each isotope.
a) 14-7 N
b) 23-11 Na
c) 222-86 Rn
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