Level 44 Level 46
Level 45

Chemical Bonding Ionic & Covalent Bond


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molecule
2 or more atoms of same or different kinds that are chemically combined.
Noble gases
Elements in group 8A of the periodic table. Have no charge and are gases under normal conditions. (Helium, Neon, Argon, Krypton, Xenon, Radon)
nonpolar covalent bond
a covalent bond in which the bonding electrons are equally attracted to both bonded atoms
Covalent bond
a bond formed when atoms share one or more pairs of electrons
Polar bond
a covalent bond in which electrons are not shared equally
octet rule
a concept of chemical bonding theory that is based on the assumption that atoms tend to have either empty valance shells or full valence shells of eight electrons
Ionic Bond
a bond that results from electrostatic attraction between oppositely charged ions. The cation is positively charged, while the anion is negatively charged.
ionic
<| 2.0+
bond energy
energy required to break a bond
metallic bond
a bond formed by the attraction between positively charged metal ions and the electrons around them
alloy
a material made of elements that has metallic properties. Usually to make a substance superior than its elemental components
oxidation number
charge that atom in a molecule is going to have if electrons are completely transferred
CO2
carbon dioxide
PCl3
example of a covalent bond
K2O
Potassium Oxide
MgO
base without a basic anhydride
N2O
dinitrogen monoxide
P4S5
tetraphosophorus pentasulfide
KBr
Potassium Bromide