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EOC Vocabulary

Bonding of Elements: 3

WordDefinitions
stable element An element with a full valence shell (outer energy level).
valence shell (level) Highest energy level containing electrons.
ionization energy The energy needed to remove an electron from an atom.
electronegativity An atom's "need" for another electron (in order to become stable).
alkali metals Group 1 of the periodic table; are very reactive and create 1+ ions.
ion An atom that has gained or lost an electron and become positively or negatively charged.
cations positive ions (atoms with less electrons)
alkaline earth metals Group 2 on periodic table. They are reactive and form ions with a 2+ charge.
transition metals Groups 3-12 on the periodic table.
halogens Group 17 on the periodic table. They are the most reactive nonmetal elements and form 1- ions.
noble gases Group 18 on the periodic table. They have a full outer energy level and are stable/ nonreactive elements.
ionic bonds Formed by the transfer of electrons. Compounds formed this way are strong, have high melting points, are usually solid and crystallized.
covalent bonds Formed by the sharing of electrons. Compunds formed are from non-metals, have low melting points.
molecules Formed by covalently bonded elements.
polar molecules Molecules with a partially positive and negative poles.
anions Negative ions. Atoms with more electrons.
Created by: kdickson
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