Earth Sciences 1086F/G Chapter Notes - Chapter 3: Milky Way, Water Content, Solar Flare
4 Jan 2021
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Chapter 3 matter and the nebular hypothesis. When the big bang created matter, the most basic forms of this matter combined to form elements, and eventually pockets of matter/elements combined to form star-planet systems. One second after bb, temperature of the universe was roughly 10 billion kelvin. As it cooled down, basic particles combined to make elements. Element: substance that cannot be broken down to anything simpler by any chemical means. Atoms: a particle of matter that has the unique properties of an element. Consist of a central nucleus that contains one or more particles called protons (positively charged) and may/may not contain neutrons (no charge) Nucleus is surrounded by electrons (negative charge) which offsets or balances the positive charge of the nucleus. Ion: atom with either a negative charge (extra electrons) or an atom with a positive charge (deficiency of electrons) Positive ions usually combine with negative ions to form neutral compounds.
