Question
Which of the following groups contains metals, non-metals and metalloids?
A.
Group 17
B.
Group 14
C.
Group 13
D.
Group 12
Answer :
Group 14
Solution :
$$\eqalign{
& {\text{Group}} - 14 \cr
& \mathop C\limits_{{\text{Non - metal}}} \,\,\,\mathop {Si}\limits_{{\text{Metalloid}}} \,\,\,\mathop {Ge}\limits_{{\text{Metalloid}}} \,\,\,\mathop {Sn}\limits_{{\text{Metal}}} \,\,\,\mathop {Pb}\limits_{{\text{Metal}}} \cr} $$