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Chemical Bonding 1

octet rule tendency for non-metal atoms to gain enough electrons to make a complete set of eight valence electrons.
duet rule hydrogen can accomodate only two electrons
oxidation and reduction metals are oxidized by non-metals, and non-metals are reduced by metals. Oxidation: loss of electrons. add a + Reduction: gain of electrons. add a -
metals and non-metals and their electrons Metals tend to loose their valence electrons to form positive ions(cations). Non-metals tend to gain electrons to form negative ions(anions)
ionic bond The attractive force between opposite charged ions.
Na+ Sodium ion
Atoms neutral, same number of protons and neutrons
Ions not neutral, they carry either a positive or negative charge. They have a + or - in front of the element.
properties of ionic compounds pure ionic compounds are only solid at room temperature. metals on the left side of periotic table react with non-metallic metals on the right (except the noble gasses) to form stable crystalline solids.
dissociate ionic compounds dissolve in water. the ions dissociate.
electrolyte a substance that dissolves in water to give a solution that conducts electricity.
covalent bond a shared pair of electrons in the molecule
molecule is an electrically neutral cluster of two or more atoms joined by shared pairs of electrons (covalent bonds) that behaves as a single particle
Created by: mrlech415