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18 Cards in this Set

  • Front
  • Back
periodic law
the statement that there is a periodic repition of chemical & physical properties of the elements when they are arranged by increasing the atomic #
periods
rows
groups
columns
representative elements
main group (1A-8A)
transition elements
groups 1B-8B
metals
elements that are generally shiny when smooth & clean, solid at room temperature, & good conductors of heat & electricity
alkali metals
group 1A metals (minus hydrogen)
alkaline earth metals
group 2A metals
transition metals
group B elements; has less than a full quota of elements
inner transition metals
group B elements that is contained in the f-block; filled outermost s orbital
nonmetals
gemerally gas pr britt;le, dull looking solids
halogens
reactive group 7A elements
noble gases
unreactive group 8A elements
metalloids
elements with physical & chemical properties of both metals & nonmetals
ion
an atom or a bonded group of atoms that has a positive or negative charge
ionization energy
energy required to remove an electron from a gaseous atom
octet rule
atoms tend to gain, lose, or share electrons in order to acquire a full set of 8 valence electrons
electronegativity
indicates the relative ability of its atoms to attract electrons in a chemical bond