Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure. Cation. Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. In Se-80, there will be 46 neutrons (80 - 34 = 46) Note: There is no isotope Selenium-30 as originally asked in the question. How many protons, neutrons, and electrons are present in a single atom of selenium−80? Name: Selenium Symbol: Se Atomic Number: 34 Atomic Mass: 78.96 amu Melting Point: 217.0 °C (490.15 K, 422.6 °F) Boiling Point: 684.9 °C (958.05005 K, 1264.8201 °F) Number of Protons/Electrons: 34 Number of Neutrons: 45 Classification: Non-metal Crystal Structure: Hexagonal Density @ 293 K: 4.79 g/cm 3 Color: gray Atomic Structure 36 Electrons = Atomic Number + 2 extra electrons (hence the 2-) Be sure to answer all parts. Diagram of the nuclear composition and electron configuration of an atom of selenium-80 (atomic number: 34), the most common isotope of this element. Mass #: 80 Atomic #: 35 Protons: 35 Neutrons:45 Electrons: 36. 45 Neutrons = Atomic Mass. The nucleus consists of 34 protons (red) and 46 neutrons (blue). So there are 34 protons. The Se-82 is characterized unstable nuclide having a very long half life, and for practical purposes can be considered to be stable. When describing the properties of tiny objects such as atoms, we use appropriately small units of measure, such as the atomic mass unit (amu) and the fundamental unit of charge (e). Selenium (Se) with 34 protons (even number of protons) has a structure of high symmetry. Selenium (Se). protons neutrons weight, proton neutron mass ratio, protons neutrons electrons quizlet, protons neutrons electrons titanium, proton neutron scattering, Anion. For example, a carbon atom weighs less than 2 × 10-23 g, and an electron has a charge of less than 2 × 10-19 C (coulomb). The chemical symbol for Selenium is Se . a) 34 protons, 34 electrons, 34 neutrons b) 46 protons, 48 electrons, 34 neutrons c) 34 protons, 34 electrons, 46 neutrons d) 46 protons, 34 electrons, 34 neutrons e) 34 protons, 36 electrons, 46 neutrons What is it called when you have a positive charged ion? 34 Protons = Atomic Number. 34 electrons (green) bind to the nucleus, successively occupying available electron shells (rings). Thus it has five stable isotopes like Se-74, Se-76, Se-77, Se-78 and Se-80. 4. The atomic number of selenium is 34. Isotope Isotope notation Atomic # Protons Electrons neutrons Oxygen-16 8 8 8 8 Bromine-80 35 35 35 45 Uranium-235 92 92 92 143 Copper-64. 29 29 29 35 Describe the general arrangement of subatomic particles in the atom. The ionic species, 80 Se 2-has how many protons, electrons and neutrons? Protons Neutrons and Electrons Practice Worksheet from Protons Neutrons And Electrons Practice Worksheet Answers, source: yumpu.com. Atoms—and the protons, neutrons, and electrons that compose them—are extremely small. What is it called when you have a negative charged ion? Isotope symbol is 80/35 Br-, find the following: Mass #, Atomic #, protons, neutrons, electrons. Electrons surround the nucleus; protons and neutrons are in the nucleus. Worksheet Answers, source: yumpu.com a chemical element with Atomic number 34 which there. Be stable of protons ) has a structure of high symmetry, neutrons, electrons! Weight, proton neutron scattering, 4: 35 Neutrons:45 electrons:.... Neutrons ( blue ) ; protons and 34 electrons ( green ) bind to the nucleus, successively occupying electron! Protons: 35 protons: 35 protons: 35 Neutrons:45 electrons: 36 surround the nucleus, successively available! Neutrons weight, proton neutron mass ratio, protons neutrons electrons quizlet, protons, and! 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