JAMB - Chemistry (1981 - No. 19)
Allotropes are elements having?
different physical but the same chemical properties
different chemical but the same physical properties
the same chemical and physical properties
different atomic structure
the same position in the periodic table
Explication
Allotropes are two or more different physical forms in which an element can exist. Graphite, charcoal, and diamond are all allotropes of carbon.