The formula of the compound formed by an element, M in Group IIIA (three valence electrons) with an element X in Group VIIA (seven valence electrons) will be
(A) MX (B) M X2 3
(C) MX3
(D)
MX2
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The formula of the compound formed by an element, M in Group IIIA (three valence electrons) with an element X in Group VIIA (seven valence electrons) will be :
(C) MX₃
Eg AlCl₃
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