JAMB - Chemistry (1984 - No. 15)
An element that can exist in two or more different structural forms which possess the same chemical properties is said to exhibit.
polymerism
isotopy
isomorphism
isomerism
allotrophy
Explanation
Allotropy or allotropism is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of these elements.
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