Earth Sciences 1086F/G Lecture Notes - Lecture 3: Atomic Number, Solar Wind
13 Jan 2020
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Chapter 3: matter and the nebular hypothesis: definitions of atoms, elements, isotopes etc. Atoms: a particle of matter with unique properties of an element. Nucleus: has one or more particles called protons positively charged and may/not have particles called neutrons (neutral or no charge) Electrons: surrounds the nucleus with a negative charge. Ion: an atom with either a positive or negative charge, depending on the amount of electrons. Isotope: an atom with a differing amount of neutrons: define fission and fusion. Fission: the breakdown of a nucleus of a relatively heavy atom into two smaller particles. Fusion: the formation of a two light atoms/isotopes into a heavier atom/isotope: formation of elements from light to heavy. The formation of elements from light to heavy in the periodic table is dependent on the number of protons in the nucleus. Atomic number = number of protons in the nucleus. The elements that formed the big bang were hydrogen (and h2, deuterium), helium, and.
