BIOL 112 Lecture Notes - Electronegativity, Zirconium, Covalent Bond
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BIOL 112 Full Course Notes
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All living things are made up of, generally 6, compounds (in yellow). Postassium (k) and sodium (na) are key as ions in the body. Atomic weight is number of protons and neutrons added together. The mass is a relative atomic mass, averaged out between the isotopes. Atomic number is number of protons, which defined identity of an element. Isotopes have equal number of protons, but different number of neutrons. The same chemical properties but are often unstable. Connecting atoms together, to create molecules, electrons take priorities. Blue space indicated area where electron may be (~90%) Bond is the filling of orbital (2 or 8 or more depending on molecule) Why does carbon form 4 bonds: hybridization and due to its position in periodic table, what"s important is filling of the orbitals. Electronegativity is the attraction to electrons that an atom has. Even in covalent bonds, electrons may lean to a specific atom.