CHEM 1201 Study Guide - Unified Atomic Mass Unit, Electric Charge, Strontium
Document Summary
Use 1. 602 x 10-19 c to determine multiples or aratios of electrical charge. Electrical charge of an atom: charge on proton: = 1. 602 x10-19 coulomb. 2: proton +1, neutron: 0, electron: -1, electostatic attraction is the magnetic attraction between (+) and (-) charges, coulomb attraction- measure of charge. Mass of an atom: simplier: use amu (atomic mass units) to express mass. 1 amu= 1. 66054 x 10-24g or 1g= 6. 022 x 10^23 amu: table 2. 1 charge mass (amu) Electron (e-) -1 0. 0005486: notice that the mass of the e- is very small. Hence most of the mass idue to the protons and neutrons, which are located in the nucleus. All atoms of a given element are identical (different atoms a have different. Atom are neither created nor destroyed in a chemical reaction. (conservation of. 5. because they have different number of neutrons. Isotopes will have different masses, even though they have the same number of protons,
