The ionic species, 80 Se 2-has how many protons, electrons and neutrons? What is it called when you have a positive charged ion? Thus it has five stable isotopes like Se-74, Se-76, Se-77, Se-78 and Se-80. Electrons surround the nucleus; protons and neutrons are in the nucleus. What is it called when you have a negative charged ion? 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 Be sure to answer all parts. Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure. The chemical symbol for Selenium is Se . The nucleus consists of 34 protons (red) and 46 neutrons (blue). Protons Neutrons and Electrons Practice Worksheet from Protons Neutrons And Electrons Practice Worksheet Answers, source: yumpu.com. Mass #: 80 Atomic #: 35 Protons: 35 Neutrons:45 Electrons: 36. The atomic number of selenium is 34. 34 electrons (green) bind to the nucleus, successively occupying available electron shells (rings). Isotope symbol is 80/35 Br-, find the following: Mass #, Atomic #, protons, neutrons, electrons. In Se-80, there will be 46 neutrons (80 - 34 = 46) Note: There is no isotope Selenium-30 as originally asked in the question. 4. 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 protons neutrons weight, proton neutron mass ratio, protons neutrons electrons quizlet, protons neutrons electrons titanium, proton neutron scattering, 29 29 29 35 Describe the general arrangement of subatomic particles in the atom. Atoms—and the protons, neutrons, and electrons that compose them—are extremely small. Diagram of the nuclear composition and electron configuration of an atom of selenium-80 (atomic number: 34), the most common isotope of this element. Anion. So there are 34 protons. 36 Electrons = Atomic Number + 2 extra electrons (hence the 2-) Selenium (Se). 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). Cation. How many protons, neutrons, and electrons are present in a single atom of selenium−80? The Se-82 is characterized unstable nuclide having a very long half life, and for practical purposes can be considered to be stable. 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. 34 Protons = Atomic Number. 45 Neutrons = Atomic Mass. Selenium (Se) with 34 protons (even number of protons) has a structure of high symmetry. 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. 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).

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