Rhenium-187. 185 Re 37.4% 185 Re is stable with 110 neutrons. There are many unstable isotopes of Rhenium but Rhenium 185 is the only stable isotope. The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. A good deal of the rhenium extracted is made into super-alloys to be used for parts in jet engines. 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? Atomic nuclei containing: 20 protons and 20 neutrons; 21 protons and 19 neutrons; 22 neutrons and 18 protons; 20 protons and 22 neutrons; 21 protons and 20 neutrons Rhenium is 62.60% 187Re, a... See all problems in Isotopes If 37.1% of rhenium has mass# = 185, what is the other stable isotope? Two isotopes of rhenium occur in nature, rhenium-185 and rhenium … Which among the following represents a set of isotopes? Isotopes. D) 75 protons, 110 neutrons . a. ... Rhenium and technetium based radiopharmaceuticals ... natural or enriched 185Re by neutrons (n) in the nuclear reactor : 186Re has 90.64 hours half-life, and emits β particles of 1.07 Mev energy and γ particles of 137 Kev energy. 120 seconds . 3. Write formulas for the sulfide ion, ammonium chloride, acetic acid, and barium oxide. 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? The principal ores of rhenium are molybdenite, gadolinite, and columbite. Sulfur with atomic number 16, mass number 32 and a two negative charge has how many protons, neutrons and electrons? The Element rhenium has two naturally occurring isotopes, 185 Re and 187 Re, with an average atomic mass of 186.207 amu. a) 35 b) 45 c) 46 d) 70 e) 81 6. Therefore: X has 18 neutrons per atom. What does Rhenium-185 have in its nucleus? 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. ... 185 Re 184.953 37.4 ... Well there are many of them. 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. (75 protons, 110 neutrons) 7.) The element rhenium (Re) has two naturally occurring isotopes, 185Re and 187Re, with an average atomic mass of 186.207 amu. 21 protons and 19 neutrons III. 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. 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. 75 protons, 75 neutrons ... What particles are in the nucleus of Rhenium-185? 5. 75 protons, 110 neutrons. Rhenium Properties. Isotopes: Rhenium has 33 isotopes whose half-lives are known, with mass numbers from 160 to 192. Rhenium-188 is a radioisotope for treatment of cancer. The mass of an alpha particle is 7300 times that of the electron. Mass percent and moles 7. 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.) Rhenium has two isotopes, 185 Re and 187 Re, with an … d. 75 protons, 110 neutrons . Given the weighted average atomic mass of rhenium (186.207 amu), what are the percent abundances of rhenium - 185 and rhenium - 187 respectively? For each of the isotopes of lead, how many protons, neutrons, and electrons are in each? 75 protons, 75 neutrons. Rhenium-189. 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 … 20 protons and 20 neutrons II. If the most stable ion of the isotope forms the compound MgX 2, how many neutrons does X have? 20 protons and 20 neutrons. Section: 2-3 . The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. Rhenium is 62.60% 187 Re, and the - 1462825 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 Symbol # Protons # Neutrons # Electrons Net Charge 206Pb B) 75 protons, 130 neutrons. Rhenium is one of the rarest elements in the world. What does Rhenium-185 have in its nucleus? Tags: Question 14 . B) 75 protons, 130 neutrons . Calculate the number of atoms of rhenium - … 75 protons, 130 neutrons c. 130 protons, 75 neutrons d. 75 protons, 110 neutrons e. not enough information. Answer: D . Rhenium is a Block D, Group 7, Period 6 element. 189^(Re)75 where the 189 is superscripted and the 75 is subscripted. Source: Rhenium is not found free in nature but is found in small quantities in platinum and molybdenum ores and many minerals. Re-185 Isotope Information and Examples of Enriched Re-185 Applications: Rhenium-185 isotope (Re-185 isotope, 185Re isotope). 20 protons and 22 neutrons Rhenium-185 (185Re) has in its nucleus: A) 75 protons, 75 neutrons . II. 3. The element rhenium (Re) does exist as two stable isotopes and 18 unstable isotopes. Mass numbers of typical isotopes of Rhenium are 185, 187. 21 protons and 19 neutrons. Commercially, rhenium is recovered as a by-product of copper refining. Mass numbers of typical isotopes of Rhenium are 185, 187. It resembles manganese in chemical properties. TRUE a. The numbers of protons, neutrons, and electrons in K+-39 are: 19 p, 20 n, 18 e. answer choices . 8. Which among the following represents a set of isotopes? Rhenium-185 has in its nucleus how many protons and neutrons? 6. An isotope, X, of a particular element has an atomic number of 16 and a mass number of 34. 22 neutrons and 18 protons IV. 21) The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. Rhenium-185 has in its nucleus ... How many protons, neutrons, and electrons does the atom 39K have? a. α d. γray b. β e. X-ray c. positron 35. How many neutrons does the isotope of lithium have? 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 … D) 75 protons, 110 neutrons. Global: G2 . Element Y has 15 protons. Rhenium-181. The Element Rhenium - Known Isotopes. An isotope, X, of a particular element has an atomic number of 16 and a mass number of 34. 6. 4. 31 Y 2-is isoelectronic with which atom below? a. 4. Rhenium-185 has in its nucleus how many protons and neutrons? Number of Protons/Electrons in Rhenium : 75 . E) not enough information is given. What particles are in the nucleus of Rhenium-185? (Sulfur34) 8.) It has two isotopes with mass numbers of 185 and 187. 75 protons, 130 neutrons c. 130 protons, 75 neutrons d. 75 protons, 110 neutrons e. not enough information C) 130 protons, 75 neutrons . Rhenium-185 has in its nucleus A) 75 protons, 75 neutrons. Which one of the following statements about atomic structure is false? Determining the number of neutrons in an atom is fairly simple and doesn’t even require any experimentation. medicine has been recognized for many decades . ... is 186.21 amu. Q. 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). How many neutrons does uranium-235 have? b. The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. 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. 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.
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