WebUh oh, it looks like we ran into an error. You need to refresh. If this problem persists, tell us. WebSep 6, 2024 · Answer: Fe2O3. Explanation: 5.60 g Iron Oxide - 3.92 g Iron ===== = 1.68 g Oxygen. Convert Fe and O to moles: 3.92 g Iron/55.85 = 0.0702 moles Fe. 1.68 g …
New half-life for iron-60 gives astronomers a better clock
WebAn isotope's mass number is closely related to its atomic mass, which is the mass of the isotope expressed in units of \text {u} u. Since the mass of a neutron and the mass of a proton are both very close to 1\, \text {u} 1u, the atomic mass of an isotope is often nearly the same as its mass number. However, don't confuse the two numbers! WebAug 27, 2014 · An isotope of an element has 5 protons and 5 neutrons. Determine its atomic number, Z, and its mass number, A. Name the isotope. Answer: Z = 5 (because it has 5 protons), N = 5, A = Z + N = 5 + 5 = 10 Using the periodic table, we see that the element with the atomic number of 5 is boron. This isotope's name is boron-10 raymond scanlon dds
Chapter 24: Nuclear Reactions Flashcards Quizlet
Webiron-60 Express your answer as an isotope. Previous Answers \& Incorrect; Try Again; 3 attempts Part B neon-20 Express your answer as an isotope. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core … WebFeb 10, 2015 · These scientists say they now have a better, more accurate figure for the time it takes this isotope to decay by half. The team found the half-life of iron-60 to be 2.6 million years. Iron-60... WebIsotopes are atoms that have the same numbers of protons but different numbers of neutrons. An ion is an atom that has gained or lost electrons, so it now has more or fewer electrons than it does protons. So an ion has a negative or positive charge. All atoms are isotopes and if an isotope gains or loses electrons it becomes an ion. raymonds building supplies