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Which period of the periodic table
(a) has no metals?
(b) has no nonmetals?
(c) has one post-transition metal and two metalloids?
Which period of the periodic table
(a) has no metals?
(b) has no nonmetals?
(c) has one post-transition metal and two metalloids?
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Abel CruzLv7
24 Nov 2020
22 Dec 2020
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