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Apologia Chem M 4A

QuestionAnswer
The electrons that exist farthest from an atom's nucleus valence electrons
most atoms strive to attain 8 valence electrons octet rule
a schematic representation of the valence electrons in an atom or molecule Lewis structure
In ionic compounds, NONmetals try to _______ electrons. gain
In ionic compounds, METALS try to _______ electrons. lose
An atom's chemical behavior is determined mostly by by the number of valence electrons it has
When joining to form a molecule, atoms never get close enough for their nuclei to interact.
Atoms in the same column of the periodic table have the same number of valence electrons.
Columns of the periodic table are often called groups or families.
The atoms in colum 8A of the periodic table, noble gases, are important because they have the ideal electron configuration.
Atoms in group 1A have 1 valence electron, so they need to drop one electron
Group 2A will drop 2 valence electrons to develop a 2+ charge.
Group 3 A (except Boron) will lose 3 valence electrons to become 3+ cations.
Group 4A nonmetals will gain electrons to become a 4- anion.
Group 4A metals will lose electrons.
Group 5A (mostly nonmetals) will gain electrons, becoming 3- anions.
6A (mostly nonmetals) will gain electrons, becoming 2- anions.
Group 7A will gain electrons becoming 1- anions.
Substances like noble gases are called inert substances because they rarely take part in chemical reactions.
A positively charge ion is called a cation.
A negatively charged ion is called an anion.
Positive cations have the same name as the atom from which they came.
Negative anions add an -ide suffix to the name of the atom from which they came.
Created by: MrsHough
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