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Complete the following table. There are many unstable isotopes of Rhenium but Rhenium 185 is the only stable isotope. 20 protons and 22 neutrons The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. Tags: Question 14 . What particles are in the nucleus of Rhenium-185? If the most stable ion of the isotope forms the compound MgX 2, how many neutrons does X have? a) 35 b) 45 c) 46 d) 70 e) 81 6. Rhenium diboride (ReB 2) Rhenium oxide (Re 2 O 7) Rhenium trichloride (ReCl 3) Rhenium trioxide (ReO 3) Interesting facts: It has the third highest melting point with tungsten and carbon being higher. Rhenium is a chemical element with the symbol Re and atomic number 75. 75 protons, 75 neutrons b. 4. The Element Rhenium - Known Isotopes. Diff: 1 . Rhenium-187. 75 protons, 75 neutrons b. Atomic nuclei containing I. ... is 186.21 amu. Rhenium is 62.60% 187Re, a... See all problems in Isotopes You get the neutrons by subtracting the atomic number from the atomic mass.185 is one of the Isotopes, another is … The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. Number of Neutrons in Rhenium : 110 or 112 depending on the isotope. Q. Rhenium-188 is a radioisotope for treatment of cancer. (75 protons, 110 neutrons) 7.) Section: 2-3 . ... Rhenium and technetium based radiopharmaceuticals ... natural or enriched 185Re by neutrons (n) in the nuclear reactor [21]: 186Re has 90.64 hours half-life, and emits β particles of 1.07 Mev energy and γ particles of 137 Kev energy. Element Y has 15 protons. Commercially, rhenium is recovered as a by-product of copper refining. Rhenium-189. Rhenium has two isotopes, 185 Re and 187 Re, with an … ... 185 Re 184.953 37.4 ... Well there are many of them. The numbers of protons, neutrons, and electrons in K+-39 are: 19 p, 20 n, 18 e. 75 protons, 110 neutrons. Isotopes. What is in the nucleus of Rhenium­185? An isotope, X, of a particular element has an atomic number of 16 and a mass number of 34. medicine has been recognized for many decades [3]. Therefore: X has 18 neutrons per atom. a. Which among the following represents a set of isotopes? It resembles manganese in chemical properties. The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. 4. Which one of the following statements about atomic structure is false? 6. 5. Mass numbers of typical isotopes of Rhenium are 185, 187. 75 protons, 75 neutrons. III. Rhenium-181. 22 neutrons and 18 protons IV. How many neutrons does the isotope of lithium have? Isotopes: Rhenium has 33 isotopes whose half-lives are known, with mass numbers from 160 to 192. 3. b. 21 protons and 19 neutrons III. The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. 20 protons and 20 neutrons. An isotope, X, of a particular element has an atomic number of 16 and a mass number of 34. 8. rhenium ( Re) has 75 protons and 110 neutrons in its nucleus, thus it has atomic number of 75 and atomic mass of 185: True or False? Global: G2 . The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. Neutron number plus atomic number equals atomic mass number: N+Z=A. Rhenium-185 has in its nucleus how many protons and neutrons? C) 130 protons, 75 neutrons . Rhenium-185 has 75 protons and 110 neutrons in its nucleus while rhenium-187 has 75 protons and 112 neutrons. The Element rhenium has two naturally occurring isotopes, 185 Re and 187 Re, with an average atomic mass of 186.207 amu. Rhenium-185 has in its nucleus ... How many protons, neutrons, and electrons does the atom 39K have? The number of electrons in each of rhenium's shells is 2, 8, 18, 32, 13, 2 and its electron configuration is [Xe] 4f 14 5d 5 6s 2. after the area where Tacke was born. The principal ores of rhenium are molybdenite, gadolinite, and columbite. a. 31 Y 2-is isoelectronic with which atom below? B) 75 protons, 130 neutrons. What is the name of element X? Rhenium is 62.60% 187 Re, and the - 1462825 a. α d. γray b. β e. X-ray c. positron 35. Calculate the number of atoms of rhenium - … 35 protons,44 neutrons, 35 electrons: The atomic mass of rhenium is 186.2 .Given that 37.1% of natural rhenium is rhenium-185, what is the other stable isotope of the element rhenium? 187 Re 62.6% 4.35x10 10 y α (not observed) 1.653 183 Ta 187 Re 62.6% 4.35x10 10 y β- 0.0026 187 Os ... Rhenium has many common compounds that are split into groups of fluorides, chlorides, bromides, iodides, oxides, sulfides, tellurides, and … Rhenium - Mass Number - Neutron Number - Re. SURVEY . D) 75 protons, 110 neutrons. 5. Its abundance is thought to be about one part per billion. The element rhenium (Re) has two naturally occurring isotopes, 185Re and 187Re, with an average atomic mass of 186.207 amu. Which among the following represents a set of isotopes? B) 75 protons, 130 neutrons . Sulfur with atomic number 16, mass number 32 and a two negative charge has how many protons, neutrons and electrons? The mass of an alpha particle is 7300 times that of the electron. 21 protons and 19 neutrons. d. 75 protons, 110 neutrons . Rhenium is one of the rarest elements in the world. 189^(Re)75 where the 189 is superscripted and the 75 is subscripted. A good deal of the rhenium extracted is made into super-alloys to be used for parts in jet engines. II. answer choices . Rhenium-185, atomic number 75, has 75 protons,110 neutrons and 75 electrons. Rhenium-185 has in its nucleus A) 75 protons, 75 neutrons. Natural rhenium is a mixture of the stable isotope rhenium-185 (37.4 percent) and the radioactive rhenium-187 (62.6 percent, 4.1 × 10 10-year half-life). Rhenium-185 has in its nucleus Select one: a. Re-185 isotope is used for research in nuclear physics; Re-185 isotope is used for Rhenium-186 (Re-186 isotope, 186Re isotope) radionuclide (radioisotope) production (can be used in life science for healthcare and medical applications and pharmaceuticals industries); How many neutrons does uranium-235 have? 6.) Source: Rhenium is not found free in nature but is found in small quantities in platinum and molybdenum ores and many minerals. answer choices . If 37.1% of rhenium has mass# = 185, what is the other stable isotope? LO: 2.3 40 20 Ca 2+ has. Name: Rhenium Symbol: Re Atomic Number: 75 Atomic Mass: 186.207 amu Melting Point: 3180.0 °C (3453.15 K, 5756.0 °F) Boiling Point: 5627.0 °C (5900.15 K, 10160.6 °F) Number of Protons/Electrons: 75 Number of Neutrons: 111 Classification: Transition Metal Crystal Structure: Hexagonal Density @ 293 K: 21.02 g/cm 3 Color: silverish Atomic Structure Rhenium is a Block D, Group 7, Period 6 element. Given the weighted average atomic mass of rhenium (186.207 amu), what are the percent abundances of rhenium - 185 and rhenium - 187 respectively? 185 Re 37.4% 185 Re is stable with 110 neutrons. Two isotopes of rhenium occur in nature, rhenium-185 and rhenium … TRUE For each of the isotopes of lead, how many protons, neutrons, and electrons are in each? 3. Atomic nuclei containing: I. Which among the following represent a set of isotopes? Not surprisingly for a transition metal, rhenium is also a good catalyst. 120 seconds . 20 protons and 20 neutrons II. Atoms of the same element with different numbers of neutrons. Number of Protons/Electrons in Rhenium : 75 . D) 75 protons, 110 neutrons . Rhenium 185 is stable but Rhenium 186 is unstable as it has an extra proton which makes too many of them compared to the amount of neutrons. 75 protons, 130 neutrons. (Sulfur­34) 8.) 75 protons, 130 neutrons c. 130 protons, 75 neutrons d. 75 protons, 110 neutrons e. not enough information E) not enough information is given. a. Rhenium-185 has in its nucleus a. Only platinum, iridium and osmium are more dense. What does Rhenium-185 have in its nucleus? Name: Rhenium Symbol: Re Atomic Number: 75 Atomic Mass: 186.2 Number of Protons/Electrons: 75 Number of Neutrons: 111 Classification:Transition Metals Discovery: 1925 Discoverer: Walter Noddack Uses: filaments for mass spectrographs c. 130 protons, 75 neutrons. It has two isotopes with mass numbers of 185 and 187. it has 6 protons and 6 neutrons b. it has 12 protons and 12 neutrons c. it has 12 protons and 8 neutrons d. it has 6 protons and 8 neutrons ... (Rhenium-185 is a stable isotope.) 21) The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. Rhenium Properties. C) 130 protons, 75 neutrons. What does Rhenium-185 have in its nucleus? d. 75 protons, 110 neutrons. Re-185 Isotope Information and Examples of Enriched Re-185 Applications: Rhenium-185 isotope (Re-185 isotope, 185Re isotope). The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. Most of the isotope data on this site has been obtained from the National Nuclear Data Center.Please visit their site for more information.. Isotopes With A … The element rhenium (Re) does exist as two stable isotopes and 18 unstable isotopes. Rhenium-185 has in its nucleus how many protons and neutrons? Mass numbers of typical isotopes of Rhenium are 185, 187. Rhenium-183. 75 protons, 130 neutrons c. 130 protons, 75 neutrons d. 75 protons, 110 neutrons e. not enough information. Answer: D . The number of neutrons in an atom is the same for all neutral atoms of that element. Rhenium-185 (185Re) has in its nucleus: A) 75 protons, 75 neutrons . Perrhenic acid (HReO 4) and its anhydride, the heptoxide, and the perrhenates are common stable compounds in which rhenium is in the +7 state. Symbol # Protons # Neutrons # Electrons Net Charge 206Pb Although all atoms of the same element contain the same number of protons, their number of neutrons can vary.Knowing how many neutrons are in a particular atom can help you determine if it's a regular atom of that element or an isotope, which will have either extra or fewer neutrons. 75 protons, 75 neutrons ... What particles are in the nucleus of Rhenium-185? 6. 6. 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