Earth minerals - PowerPoint PPT Presentation

How did the Earth form?

How did the Earth form?. What processes were involved? When did it happen? How long did it take? How do we know?. How do stars form?. The Nebular Hypothesis. Observations. Stars can be seen in various stages of formation.

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449 views • 15 slides

Shannon MacWilliams

Shannon MacWilliams. Element: Yttrium. Yttrium. Element Name: Yttrium Chemical Symbol: Y Atomic Number: 39 Atomic Mass: 88.9. Electron Diagram. Info and Physical Description. Family Number: 16 Valence Number: 3 State of Matter: Solid Metal, Non-Metal or Metalloid: (Transition) Metal

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237 views • 7 slides

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