Chemistry
Answer
(a) Allotropy is defined as the phenomenon due to which an element exists in two or more forms in the same physical state with identical chemical properties but with different physical properties.
(b) The weight of a diamond is expressed in terms of carats, where 1 carat = 0.2 g.
(c) A crystal is a homogeneous solid in which particles are arranged in a definite pattern due to which they have a definite geometrical shape with a plane surface.
(d) Carbon atoms possess a unique property to link themselves together to form very long chains of different sizes which may be straight, branched or cyclic and this property is called catenation.
Related Questions
Name the following:
(a) The hardest naturally occurring substance.
(b) A greyish black non-metal that is a good conductor of electricity.
(c) The third crystalline form of carbon.
How many carbon atoms are there in Buckminster fullerenes?
Answer the following in brief :
Why is graphite a good conductor of electricity but not diamond?
Answer the following in brief:
Why is diamond very hard?