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Elements within the same group of the periodic table behave similarly because they have the same number of ________.
The _________ number of a representative element indicates how many valence electrons the element has.
Gilbert Lewis' _________ states that in forming compounds, atoms tend to achieve the electron configuration of a noble gas.
The transfer of valence electrons produces positively charged ions, or _________, and negatively charged ions called _________.
Halide ions... gain
_________ are produced when atoms of the elements in in Group 7A _________ an electron.
The chemical properties of an element are largely determined by the number of valence electrons the element has.
Among the Group 1A and 2A elements, the group number of each element is equal to the number of valence electrons in an atom of that element.
oppositely... ionic bonds
The forces of attraction that hold _________ charged ions together in ionic compounds are called _________.
Ionic compounds have high melting temperatures because the _________ attractive forces between the ions result in a very _________ structure.
Ionic compounds conduct an electric current when in the _________ state or dissolved in water.
During the formation of the compound NaCl, one electron is transferred from a sodium atom to a chlorine atom.
The coordination number of an ion is the number of ions of positive charge that surround the ion in a crystal.
shows the kinds of numbers of atoms in the smallest representative unit of a substance
Metals consist of closely packed _________ that are surrounded by a sea of _________.
electrical... ductile... malleable
The electron mobility accounts for the excellent _________ conductivity of metals and helps explain why metals are _________ and _________.
When two or more elements, at least one of which is a metal, are mixed together, the resulting mixture is called an _________.
Drifting valence electrons insulate cations from one another and contribute to the malleability of a metal.
1+... 2+... 3+
Groups 1A ions have a __ charge, whereas Group 2A metals form ions with a __ charge, and Group 3A metals form ions with a __ charge.
transition metals... stock... classical
Many of the _________ have more than one common ionic charge. These ions are named either the _________ system or the _________ naming system.
In polyatomic ions for which there is an ite/ate pair, the -ite ending will always indicate one less oxygen atom that the ate ending.
Binary ionic compounds are named by writing the name of the _________ followed by the name of the _________.
Compounds with polyatomic ions whose names end in -ite or -ate contain a polyatomic _________ that includes _________.
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