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The number of elements in Group 13 is

$\begin {array} {1 1} (A)\;4 & \quad (B)\;5 \\ (C)\;6 & \quad (D)\;7 \end {array}$

1 Answer

Boron group elements incorporate any of the six chemical elements forming Group 13 (IIIa) of the periodic table. The elements are boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and element 113 (briefly named ununtrium [Uut]).
(C) is the correct answer.
answered Jul 24, 2014 by thanvigandhi_1
edited Nov 16 by sharmaaparna1