Why?
2. An element belongs to the 3rd period and Group IIIA (13)
of the periodic table. State :
(a) the number of valence electrons,
(b) the valency,
(c) if it is a metal or non-metal ?
(d) the name of the element.
once to the elements
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0
Answer:
the element name aluminium
a) 5
b)3
c)non metal
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