D) the periodic table
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9 Terms
name of group 1
alkali metals
name of group 7
halogens
name of group 0
noble gases
metals conduct electricity because of…
the delocalised electrons that are free to move
non-metals do not conduct electricity because…
there are no electrons that are free to move
metals generally form…
basic oxides
a basic oxide is one which reacts with acids to form salts
e.g. copper forms copper(II) oxide, this reacts with sulfuric acid to form the salt copper (II) sulfate
non-metals generally form…
acidic oxides
e.g. sulfur(IV) oxide - acid rain
why do elements in the same group have similar chemical properties?
because they have the same number of electrons in the outer shell
why do the noble gases (Group 0) do not readily react?
they have complete outer shells, so they have no tendency to lose, gain, or share electrons