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Chemistry Ch. 5-6

Chemistry Ch. 5-6 Master Books

TermDefinition
protons particles of an atom that are within the nucleus of an atom and have a charge of plus one and mass of 1 atomic mass unit
electrons particles of an atom that are outside of the nucleus of an atom and have a charge of minus one and negligible mass
periodic table of the elements a visual representation of the chemical elements, ordered by atomic number, electron configuration, and chemical properties
atomic mass unit (amu) the mass of a proton or a neutron
neutrons particles of an atom that are within the nucleus of an atom and have a zero charge and mass of 1 atomic mass unit
element the identity of an atom such as hydrogen carbon, or iron
ion an atom or molecule that has a + or - charge
deuterium a hydrogen atom with 1 proton and 1 neutron
isotopes atoms that have the same number of protons (same elements) but different numbers of neutrons (different masses)
atomic number number of protons in an atom that establishes the identity of an element
molecular mass the mass of a mole of particular molecules (such as the mass of a mole of water molecules is 18 grams/mole)
tritium Hydrogen atom with 1 proton and 2 neutrons with an atomic mass of 3 amu
molar solution contains 1 mole of solute in 1 liter of the solution
Created by: lacasamama
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