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Classification of Modern Periodic Table

An element be...

Question

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.

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Solution

a) It has 3 valence electrons
b) The valency is +3
c) Aluminium is usually considered to be a metal
d) Name of the element is " Aluminium"

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Classification of Modern Periodic Table

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