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Chemistry Chapter 6.1

Terms in this set (26)

Isolated atoms are __________ in nature
rare
_____________ atoms exist independently
noble gas
Atoms of other elements are usually ____________ with eachother or with atoms of different elements.
combined
When atoms bond
Valence electrons are redistributed/atoms are more stable
Chemical bonds are classified by
Way in which valence electrons are distributed around the nuclei of combined atoms.
Metals tend to
lose electrons to form positive ions (cations).
Nonmetals tend to
gain electrons to form negative ions (anions).
Most atoms want ___ electrons in their outermost energy levels
8
Many chemical compounds are composed of ____
ions
Chemical bond resulting from electrostatic attraction between positive and negative ions.
Ionic Bond
Chemical bond resulting from the sharing of electrons between two atoms.
Covalent Bond
In a purely covalent bond
the shared electrons are "owned" equally by the two atoms.
Chemical bonds between unlike atoms
are never completely ionic and rarely completely covalent.
Bonds can range depending on
how strongly the bonded atoms attract electrons.
The degree to which bonds are ionic or covalent
can be estimated by comparing the electronegativities of the bonded atoms.
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