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__________ is an atom's affinity for electrons.

Differences in electronegativity dictate how electrons are distributed in covalent bonds. __________ covalent bonds = equal sharing of electrons

Differences in electronegativity dictate how electrons are distributed in covalent bonds. __________ covalent bonds = unequal sharing of electrons

Chemical reactions involve the __________ or __________ of chemical bonds.

Whether a chemical reaction occurs is influenced by temperature, concentration of reactants and products, and availability of a catalyst.

Chemical reactions are written with the reactants first, followed by the products.

The periodic table arranges all elements according to their _______.

The table identifies elements with similar _______. Examples of chemical properties:

_______ are the electrons in the _______ energy level of an atom.

An element's chemical _______ depend on interactions between _______ of different atoms.