EarthOrigin

EarthOrigin - Atoms Origin of the Earth and the solar...

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1 Origin of the Earth and the solar system; Earth structure Atoms Atoms • A sphere about 1 angstrom (Å) in diameter -- an angstrom is 10 -10 m • At the center of an atom is a nucleus which contains most of the mass of the atom –Protons with a positive charge –Neutrons with no charge -- neutral Atoms Atoms • Electrons Electrons (E): negative charge, very little mass Protons Protons (Z): positive charge, mass 1832 times greater than electron • Neutrons Neutrons (N): no electric charge, mass 1833 times greater than electron
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2 Atomic structure Atomic structure Nucleus: protons, neutrons Nucleus: protons, neutrons C 12 Electrons orbit around the nucleus in discrete shells. Elements • Atoms with the same number of protons Formation of Elements Fusion- nucleus of two or more elements combine Fission- nucleus of an element breaks apart Our Solar System
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3 Origin of solar system Pick a theory, any theory, but it must be consistent with these facts: 1) Planets all revolve around the Sun in the
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EarthOrigin - Atoms Origin of the Earth and the solar...

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