CHM 2040 Lecture Notes - Lecture 2: Atomic Number, Ductility, Noble Gas
Document Summary
Chapter 2: atoms comes from greek atomos meaning indivisible, can"t divide a carbon atom into smaller pieces and still have carbon. Imagining and moving atoms: sinning tunneling microscopy: technique that can image and move individual atoms and molecules, atoms are key to connecting macroscopic worlds - atom is smallest unit of an element. The neutrons: rutherfords model was incomplete, mass of neutron is similar to proton, neutron has no electrical charge, hydrogen contains only e proton and no neutrons. Isotopes: sum of neutrons and protons in an atom is mass number (represented by symbol a, second common. What is atomic number mass number and symbol of chlorine isotope with 18 neutrons. How many protons, electrons, neutrons present in atom of 52/24 c. Cu-63 with a mass of 62. 9291 amu and a natural abundance of 69. 17% and cu-65 with a mass of 64. 9278 amu and a natural abundance of.
