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Chapter 4 polyatomic

polyatomic molecules

QuestionAnswer
What is the Lewis Structure? a combination of Lewis Symbols that represent either the transfer or the sharing of electrons in chemical bonds.
what is a valence structure? the electrons in the outermost shell.
what is a valence shell? outermost shell of electrons
what is the octet rule? that only 8 electrons can be in a outershell(valence shell/level) of an atom- except for H and He who have one shell containing maximum number of electrons of 2 electrons
what is ionic bonding? chemical bond formed from the transfer of electrons between two or more atoms.
what is an ionic compound? a compound that has ionic bonds
what is an ion? an atom with either a negative charge or a positive charge which is due to the gaining or losing of electrons
what is the name of a positive ion? cation
what is the name of a negative ion? anion
what is a oxidation number? it is a subscript that represent the charge if a ion.
what is a binary compound? a compound where 2 elements( a metal and a nonmetal) are present
what is the correct way to form a binary compound? the oxidation number of the atoms must equal 0
what is a ionization energy? energy required to remove the most loosely held electron from the outer shell of an atom.
How can you tell which atoms have higher ionization energy by looking at the periodic table? ionization energy increases as one goes up and to the right of the periodic table. Fl has the highest ionization energy
What is the name of copper 1 ion? cuprous ion
what is the name of copper 11 ion? cupirc ion
what is the name of iron 11 ion? ferrous ion
what is the name of iron 111 ion? ferric ion
what is a polyatomic molecule? nonmetals that are bonded together to form an ion.
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