The chemical symbol for Promethium is Pm. Carbon - 13, the number after the dash represents the elements mass number (protons + neutrons). there are 7 neutrons. There are more carbon compounds than there are compounds of all other elements combined. Carbon-13 is an isotope. Please help with both questions and show all work! 5 years ago. 0 0? C-12, C-thirteen and C-14 are all isotopes of carbon. Source(s): High School Chemistry. The number of electrons and protons remain the same, only the amount of neutrons changes. Z, the atomic number, of carbon is 6. For example, carbon – 12, carbon – 13 and carbon – 14 are three isotopes of Carbon, each having 6 electrons. Sodium is a soft, silvery-white, highly reactive metal. Carbon is the sixth element with a total of 6 electrons. Therefore, the amount of carbon on Earth is effectively constant. In writing the electron configuration for carbon the first two electrons will go in the 1s orbital. 2) A fictitious element X is composed of 10.0 percent of the isotope X-55, 20.0 percent of the isotope X-56, and 70.0 percent of the isotope X-57. The neutron number however are, 6, 7, and 8, respectively, in each of these Carbon isotopes. the atomic # doesnt change! If it is the ""^14C isotope, there must be 8 neutrally charged massive particles, 8 neutrons, in the nucleus. 34. Most common isotopes: carbon-12 (6 protons, 6 neutrons and 6 electrons) and carbon-13 (6 protons, 7 neutrons and 6 electrons) Carbon: From stars to life. If the atom of carbon-13 is a neutral atom, meaning that it does not have a positive or a negative charge, then it will have six electrons. Carbon has 6 protons. Since 1s can only hold two electrons the next 2 electrons for C goes in the 2s orbital. If the atoms are neutral, they also must contain six electrons. so plug it in the equation. 12 C: 6 electrons, 6 protons, and 6 neutrons. How many protons electrons and neutrons are in an atom of carbon 13 1 6 protons from CH 52365 at University of Texas you can use this equation to help you : mass#=#p++#n0. – Electrons lose energy as they move to lower shells. The only difference between these isotopes is the number of neutrons in the nucleus. Carbon-14, a radioactive isotope of carbon, is used to find the age of dead things by using radiocarbon dating. Calculate the weighted atomic mass of element X to the nearest tenth. 1) List the number of protons, neutrons, and electrons in Carbon-13. 12 C, 13 C, and 14 C are isotopes of carbon (Z = 6) and therefore contain six protons. Carbon 13 has 7 neutrons.The atomic mass represents the total number of protons and electrons. 13 C: 6 electrons… There are 6 massive, positively charged nuclear particles; this gives rise to the elemental identity. electrons return to lower states. The chemical symbol for Californium is Cf. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds.It belongs to group 14 of the periodic table. Lv 4. It is found in abundance in the sun, stars, comets, and the atmospheres of most planets. Isotopes are atoms of the same element with the same proton number, but different number of neutrons. Carbon makes up only about 0.025 percent of Earth's crust. Carbon (from Latin: carbo "coal") is a chemical element with the symbol C and atomic number 6. 13 = 6 + n. n=7. – Light is emitted as electrons return from higher to lower energy states. Is used to carbon 13 electrons the age of dead things by using radiocarbon dating are isotopes! 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