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Chap 17-18 PS

Chap 18 and 17 physical science bob jones

Element Any pure substance that is made of only one kind of atom
Monoatomic elements Has one atom in its natural state
Diatomic elements Has two atoms in its natural state
Periodicity The repetition of certain properties at regular intervals when elements were placed in order of atomic mass
Period A group on the periodic table
Series A family on the periodic table
Metals The belong to family's with relatively few valence electrons. Luster, malleable, conduct electricity, ductile
Non metal Hold their electrons tightly. Lack luster, brittle, does not conduct electricity, not ductile
Electron affinity Deals with the strength of attraction of electrons to unbounded atoms.
Electronegativity Deals with an atom's ability at attract and hold electrons when bonded to other atoms.
Covalent bonds Nonmetal and nonmetal. Shard electrons
Ionic bonds Metal and non metal. Gives and takes electrons
Metallic bonds Metal and metal. All electrons shared.
Electron sea theory Atoms with weak elecronegativities usually have only a few loosely held valence electrons.
Created by: avallen