PPT-Isotopes Let’s Review Protons

Neutrons Electrons Charge 1 0 1 Mass 1 amu 1 amu 0 Location nucleus nucleus Electron cloud Isotopes Atoms that have the same number of protons but have different numbers of neutrons. Isotopes. Isotopes. : atoms of the same element that have different numbers of neutrons. Two isotopes of an element will have the same atomic number, but different mass numbers (and atomic masses). CARBON (above right). 3.1. Carbon isotopes and the global carbon cycle3.2.1. Photosynthesis, respiration, export productivity, and surface-deep gradients3.2.3. Chemistry. Ms. Pollock. 2013 - 2014. Introduction. Dalton’s atomic theory very good but not entirely correct. Atoms able to be broken into smaller particles. Electrons, Protons, and Neutrons. Electrons. Unit 11. The Atomic Nucleus. Identification of Three Subatomic Particles (3.5). Arrangement of Subatomic Particles (3.5). Definitions of atomic number, mass number, isotope (3.5). Three Basic Subatomic Particles . Isotopes. Isotopes are atoms that have the same number of protons but different numbers of neutrons. Most elements in the first two rows of the periodic table have at least 2 isotopes with one being more common than the other. in the Sun. . No Need for Confinement!. The enormous self-gravity of the sun holds it together. There is no way the fuel can escape (or the sun can blow itself apart).. So the nuclear reactions just keep . What is it?. Isotopes are different versions of atoms having the same number of protons but different numbers of neutrons.. Atomic Mass. The mass of each isotope is different due to the different number of neutrons.. Components of an atom. Atoms are made of . . Protons . Electrons. Neutrons . Symbols and Atomic . Structure. Isotopes. . are atoms of an element with identical chemical properties, but different masses due to a difference in the number of neutrons.. Please pick up the QOTD on the half-sheet of paper up front.. Do the questions on the half-sheet of paper. PLEASE HAVE YOUR HOMEWORK READY: pages 97-100. I . will check them now. . QOTD 10/30/13. 1. a. . 2. Nuclear Physics. Back to Rutherford and his discovery of the nucleus. Also coined the term “proton” in 1920, and described a “neutron” in 1921. Neutron discovered by Chadwick in 1932. Ernest Rutherford. The structure of atoms dictate their properties. How atoms combine dictate what we see in the many . minerals. in nature. . New technologies allow us to peer ever closer at the minute structures of minerals, down to the scale of individual atoms.. What number equals the number of protons?. Atomic Number. From the periodic table – . How is the mass of a “regular” (most abundant) atom determined?. Protons Neutrons = Atomic Mass. An Isotope is defined as…. Atoms of the same element . can. have different . mass numbers.. Isotopes. How can atoms of the same element end up with a different mass?. Shoulder Partners. Frederick Soddy. (1877-1956) proposed the idea of isotopes in 1912. Mass (. amu. ). Location. Electron. e. -. -1. About. 0.000544. Surrounding nucleus. Proton. p. +. +1. About 1. Inside nucleus. Neutron. n. 0. 0. About 1. Inside nucleus. Isotopes. J.J. Thomson saw that there were two different neon atoms in the cathode ray tube.