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Level 49

Science Ionic Covalent Bonds


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ion
A charged atom
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 compound
a compound composed of positive and negative ions; most commonly between metals and non-metals
Coefficient
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
Subscript
A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound
Covalent bond
a bond formed when atoms share one or more pairs of electrons
molecule
2 or more atoms of same or different kinds that are chemically combined.
double bond
2 atoms share 4 electrons (2 pairs)
triple bond
2 atoms share 6 electrons (3 pair)
Molecular Compound
A compound composed of molecules
Nonpolar Bond
A covalent bond in which electrons are shared equally
Polar bond
a covalent bond in which electrons are not shared equally