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Chemical Bonds
Test #3
Question | Answer |
---|---|
In general a chemical bond is a(n) ____________ ____________ between two atomic species (_______ or_________). | electrostatic attraction / atoms or ions |
What is the specific nature of an ionic chemical bond? | It is an electrostatic force of attration between a cation(+) and an anion(-)...In other words, a metal and a nonmetal |
The basic unit of any covalent chemical is a __________. | molecule |
What is the specific nature of a covalent chemical bond? | It is an electrostatic force of attraction between two nuclei and SHARED PAIRS of electrons (between 2 NONMETALS) |
________ become ________ by loss of all valence electrons. | Metals / cations(+) |
__________ become _________ by gaining enough valence electrons to reach an octet (4 pair of valence electrons). | Nonmetals / anions(-) |
A chemical compound that cotains exactly 2 different elements is called a: | Binary Chemical Compound |
Binary ionic chemical compounds contain a _________ and a _________. | metal / nonmetal |
When naming ionic compounds, if the metal is a Group ___ element, use the name of the element. | A |
When naming ionic compounds, if the metal is a Group ___ element, use the name of the element followed by a Roman numeral equal to the charge. | B |
When naming ionic compounds, if the nonmetal element is a single negative ion, use the name of the element ending with "---". | ide |
When naming ionic compounds, if the nonmetal is a _________ ______, use the name of the _________ ______, which will usually end in "ite" or "ate" (with the exception of ammonium). | polyatomic ion / polyatomic ion |