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Chem 07 Ionic/Metals

Terms associated with Ionic and Metallic Bonding

2 or more elements chemically combined in a set ratio compound
shorthand/abbreviation for a compound (uses symbols and subscripts) chemical formula
number written after and below symbol in chemical formula that tells number of that element in a compound formula subscript
chemically stable elements in group 18 on the periodic table noble gases
chemically stable arrangement of (8) electrons in the outer energy level stable octet (n.g.c.)
describes the electrons in the outer lever, or the level itself valence
force that holds atoms together in a compound chemical bond
elements with 1-3 outer e-'s, on left side of PT, tend to lose e-'s metals
elements with 5-7 outer e-'s, on right side of PT, tend to gain electrons (during ionic bonding) nonmetals
simplified Bohr model that uses a symbol surrounded by dots to represent only an atom's valence electrons Lewis structure (dot diagram)
an atom with an overall charge (due to gaining or losing e-s) ion
a positively-charged ion (formed by losing electrons) cation
a negatively-charged ion (formed by gaining electrons) anion
attraction between oppositely-charged ions (in an ionic compound) ionic bond
describes a compound composed of (only) two different elements binary
describes a compound composed of (only) three different elements ternary
combination of individual elements needed for ionic bonding to occur metal + nonmetal
used to tell the charge of a (transition) metal that can form more than one charge Roman numerals
procedure for writing chemical formulas if given 2 ions ion-charge (criss cross) method
group of atoms with an overall charge that act as a single unit polyatomic ion
name and # of group whose members only form ions with a charge of 1+ alkali metals (group 1)
name and # of group whose members only form ions with a charge of 2+ alkaline earth metals (group 2)
name and # of group whose members only form ions with a charge of 1– halogens
simplest ratio of ions in an ionic compound (ionics do NOT make molecules) formula unit
solid whose particles are arranged in a regular geometry crystal
smallest repeating building block of a crystal unit cell
overall repeating pattern of particles within a crystal crystal lattice
tells the # of oppositely-charged ions surrounding a particular ion in a crystal coordination number
the coordination number for both Na and Cl ions in NaCl (table salt) 6
the unit cell (shape) of NaCl (salt) crystals cubic (isometric)
somewhat 'poetic' name for the loose, mobile valence electrons in metals electron sea
property of metals that describes their ability to be flattened without breaking malleable
property of metals that describes their ability to reflect light well when polished luster
property of metals that describes their ability to allow electricity and heat to pass through easiy conductor
any system for naming things (such as compounds) systematically nomenclature
suffix that ends the name of all binary ionic compounds -ide
if a name in a formula contains '-ate' or '-ite', that indicates what is present? polyatomic ion
if "XO4^2–" is called "exate", what is the likely formula for "exite"? XO3^2–
prefix used in a few polyatomic ions means "more (than)" per-
prefix used in a few polyatomic ions means "lower (than)" hypo-
how many atoms are represented by the formula (NH4)3PO4? 20
which condition of an ionic compound does NOT conduct: solid, liquid, dissolved? solid
describes a solid whose (water) solution conducts electricity electrolyte
what combination of charges during 'criss cross' requires you to eventually reduce the ratio (?/?)? 4+/2–
when trying to name a compound from its formula, what specific item do you look for FIRST to put the divider line after? (then you put it after 1st symbol) ammonium (NH4)
when trying to name a compound that contains a metal that uses Roman numerals, how can you be sure to pick the correct Roman numeral? do scratch work for both possible charges
Created by: goakley