BIOA01H3 Chapter Notes - Chapter 2: Electronegativity

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13 Oct 2018

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Core concepts: atoms, combining of atoms and how it. Outline of water properties needed to support life: organic molecules and the role of. Atom : the basic unit of matter (anything which occupy space and mass) Atom is made up of protons (positive charge), neutrons (neutral charge), and electrons (negative charge) The specific number of protons determine fundamental nature of the substance: the element ( different number of protons means a different element ). Mass of an atom ( atomic mass determined by the protons and neutrons. Isotopes different atomic mass of the same element because of different number of neutrons. The reason electrons mass is negligible is because they their location is hard to. Different orbitals are positioned relative to the nucleus; orbitals close to the nucleus have the least amount of energy and farther away have more energy. Shell (multiple orbitals can occupy a given shell).

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