Terms in this set (41)
is the force that holds 2 atoms together
how do chemical bonds form?
the attraction btwn the positive nucleus of 1 atom and the negative electrons of another atom
positively charged ion
why are metals reactive?
bc they lose valence electrons easily
what will the charge of a transition metal be?
either 2+ or3+
negative charged ion
the electrostatic force that holds oppositely charged particle together in an ionic compound
compounds that contain ionic bonds
what do binary ionic compounds contain?
only 22 different elements- a metallic cation and a nonmetallic anion
metal + oxygen
metal+ anything other than oxygen
what do positive and negative ions exist in?
a ratio determined by the number of electrons transferred from the metal atom to the nonmetal atom
the repeating pattern of particle packing in an ionic compound
a 3D geometric arrangement of particles, and is responsible for the structure of many minerals
what do the melting point, boiling point, and hardness depend on?
the strength of the attraction
which type of ion can conduct electricity best-solid of liquid- and why?
liquid bc the ions are in an aqueous solution that have electrons that are free to move, so they conduct electricity easily
an ion in an aqueous solution that conducts electricity
reactions that absorb energy
reactions that release energy
what are ionic bond always? endothermic or exothermic?
the energy required to separate 1 mol of ions in an ionic compound
what is lattice energy directly related to?
the size of the ions that are bonded
which comes first in a chemical formula, anion or cation?
cation, then anion
represents the simpliest ratio of the ions involved
are one-atom ions
the oxidation state, is the change of a monatomic ion
what does a subscript represent?
the # of ions of each element in an ionic compound
are ions made up of more than 1 atom
is a polyatomic ion compound of an element bonded to one or more oxygen atoms
list the 3 rules for naming chemical compounds
1) name the cation before the anion
2) for monatomic , cations use the element's name
3) for monatomic anion, use the root element and the suffix [-ide]
are metals ionic?
no, but they share several properties with ionic compounds
what happens within a crystal lattice?
the outer energy levels of metal atoms overlap
electron sea level
proposes that all metal atoms in a metallic solid contribute their valence electrons to form a "sea" of electrons
the electrons are free to move around and form a metallic cation
is the attraction of an metallic cation for delocalized electrons
why are boiling points are much more extreme than melting points?
bc of the energy required to separate atoms from the groups of cations and electrons
why are metals malleable and ductile?
bc they can be hammered into sheets and can be drawn into wires
what makes metals good conductors of electricity and heat?
mobile electrons around cations
is a mixture of elements that has metallic properties
are formed when some atoms in the original metallic solid are replaced by other metals of similar atomic structure
are formed when small holes in a metallic crystals are filled with smaller atoms