Atomic Structure Chm 1.1.1. Matter MixturesPure Substances.
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Transcript of Atomic Structure Chm 1.1.1. Matter MixturesPure Substances.
Atomic Structure Chm 1.1.1
Matter
Matter
Mixtures Pure Substances
Compounds
Elements that are CHEMICALLY bonded togetherCan’t be separated by physical means
Elements
Made up of 1 type of atom
Atoms
• Smallest unit of matter
That has the characteristics of the element
What elements are made of
Regions of the Atom
Nucleus
Electron Cloud-Area surrounding the nucleus
NucleusSubatomic Particles:
Proton – mass = 1amupositive charge
Neutron – mass = 1amuno charge
Electron Cloud
Subatomic Particle:
Electron – mass = 0 amunegative chargeorbits the nucleus
Ions +
An atom with an electrical charge
cation
Ions - anion
Isotopes
Different number of neutrons = different mass
Isotope Designation
Carbon - 12
Atomic Number, Mass # and Atomic Mass
Atomic Number
Atomic Mass
Mass Number = 59