8th Grade: Ionic v Covalent Bonds

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Ionic v Covalent Bonds

ionic bond

Formed when one or more electrons are transferred from one atom to another

covalent bond

a chemical bond that involves sharing a pair of electrons between atoms in a molecule

atom

smallest particle of an element

ion

a particle that is electrically charged (positive or negative)

valence electron

an electron in the outermost energy level of an atom

negative ion

when an atom gains an electron

positive ion

when an atom loses an electron

metallic bond

bond that forms when atoms share one or more pairs of electrons

electron-dot diagram

the symbol for the element surrounded by as many dots as there are electrons in its outer energy level

molecule

the simplest structural unit of an element or compound

malleability

the ability of a material to be hammered or rolled into thin sheets

atomic symbol

an abbreviation for an element or atom

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