In 2012, scientists announced the discovery of planets revolving around binary stars—two stars that orbit each other! Given this difference from the solar system patterns that had previously been described, do you think scientists should change the scientific theory of solar system formation? Give evidence to support your claim.
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The allotropes of carbon include a variety of structures that include three-dimensional tetrahedral lattices, planes of hexagonal rings, cylindrical tubes of hexagonal rings, and spheres of five- and six-membered rings. similar shapes of network covalent atomic solids are possible with carbon nitride, boron, and pure silicon (e.g., silicene is a graphene-like allotrope of pure silicon). in contrast, silicates exist as either highly ordered or amorphous (more random) three-dimensional lattices. what could explain why there are there no naturally occurring sheets, stacked sheets, cylindrical tubes, or spheres of network covalent atomic solids composed of silicon and oxygen (sio2)? would pure silicate structures make good lubricants or good electrical conductors?
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In 2012, scientists announced the discovery of planets revolving around binary stars—two stars that...
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