Using the average atomic mass from the periodic table, find the abundance of each isotope. The mass of antimony-121 is 120.904 amu and the mass of antimony-123 is 122.904 amu. The electronic configuration of the elements determines the way in which the electrons are structured in the atoms of an element. The pure metal is quite brittle. All structured data from the file and property namespaces is available under the Creative Commons CC0 License; all unstructured text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. The atomic number of Sb is 51. They are equal to 16, 16 and 18, respectively. The arrangement of the elements from left to right in period 4 on the periodic table is based on A)atomic mass B)atomic number C)the number of electron shells Antimony is capable of displacing hydrogen from water, when heated: 2 Sb + 3 H 2 O → Sb 2 O 3 + 3 H 2. Atomic mass/Isotope abundance questions Antimony (Atomic weight 121.75) has two naturally-occurring isotopes with isotopic weights 120.9038 and 122.9041. [1] Answer--> (120.90*57) + (122.90*43)/100 Silver joins with lead and antimony in the sulfide andorite, AgPbSb 3 S 6. In the above, the most intense ion is set to 100% since this corresponds best to the output from a mass spectrometer. Solution for The element antimony (Sb) has an atomic mass of 121.76 amu. (1 u is equal to 1/12 the mass of one atom of carbon-12) Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol. It has the atomic number 51. Antimony is a chemical element with symbol Sb and atomic number 51. Actinium gave the name to the actinide series, a group of 15 similar elements between actinium and lawrencium in the periodic table. Atomic Mass of Antimony. Antimony is a chemical element.It has the chemical symbol Sb.The symbol Sb is from the Latin name of 'stibium' for the element. Let’s assume that it is the sulfide anion. Symbol:"Sb" Atomic Number:"51" Atomic Mass: 121.75amu. Other countries that have reservoirs of antimony include Tajikistan, Russia, South Africa and B… What is the percentage abundance of the heavier isotope? 67 In the space in your answer booklet, show a correct numerical setup for calculating the atomic mass of antimony. (Remember that the sum of the two abundances must be 100. This is not to be confused with the relative percentage isotope abundances which totals 100% for all the naturally occurring isotopes. The atomic mass =number of neutrons +atomic number More Information: Families of Elements: Argon: Antimony has been used for thousands of years. Write an equation to describe the relationship between the percent abundance of 121Sb and the percent abundance of 123Sb. Classified as a metalloid, Antimony is a solid at room temperature. In nature, it is present in the form of mineral, such as stibnite, which is its sulfide mineral (Sb2S3). Sb Antimony element 51 Alternate Names: Stibium Mass Number: 122 Atomic weight:121.760 g/mol Atomic number (Z): 51 Electrons: 51 Protons: 51 Neutrons: 71 The chemical value was evidently given a preference when in 1969 the Commission recommended Ar(Sb) = 121.75(3). Relative atomic mass: 121.760 Electron configuration: [Kr] 4d 10 5s 2 5p 3. This list contains the 118 elements of chemistry. Another word for atomic mass. What is the percentage abundance of the heavier isotope? Antimony is a semimetal with an electrical conductivity of around 3.1 × 10 4 S•cm −1 and a band overlap of 0.16 eV. What is antimony's atomic mass? Block: p-block. Antimony with copper and silver form the sulfide polybasite. Sb Element (Antimony) - Antimony is chemical element number 51, with atomic weight 122, chemical symbol Sb, and is a member of group 15 of the periodic table. 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