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16 Cards in this Set

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what are the 7 familes/groups?
Alkali, Alkaline, Transition metals, metalloids, chalcogens, halogens, noble gases
alkali
reactive with water- preparation of soaps
alkaline
earth metals- not as reactive with water as alkali
transition metals
strong and flexible- great conductors of electricity and heat
metalloids
contain some metal properties
chalcogens
found in ores
halogen
salt forming
noble gases
don't combine with other elements
what is an atom composed of
3 sub-atomic particles
isotope
varieties of an element with a different number of neutrons
atomic radius
how big the atom is
electronegativity
the ability of an atom to accept electrons
ionization energy
energy required to give up electrons
ion
an atom that has a net electrical charge
what is the positive ion called
cation
what was the negative ion called
anion