12 terms

8th Grade: Ionic v Covalent Bonds

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
smallest particle of an element
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
the simplest structural unit of an element or compound
the ability of a material to be hammered or rolled into thin sheets
atomic symbol
an abbreviation for an element or atom