10 examples of isomers,isobars, isotope, allotropes
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Isomers
Example of structural isomers: butane and isobutane. ...
Examples of enantiomers: two forms of CHFClBr (with hydrogen and the halogens bonded to a central asymmetric carbon). ...
Image of the L and D isomers of alanine. ...
Example of cis-trans isomers: cis-2-butene and trans-2-butene.
Isobars are atoms (nuclides) of different chemical elements that have the same number of nucleons. Correspondingly, isobars differ in atomic number (or number of protons) but have the same mass number. An example of a series of isobars would be 40S, 40Cl, 40Ar, 40K, and 40Ca.
The number of nucleons (both protons and neutrons) in the nucleus is the atom's mass number, and each isotope of a given element has a different mass number. For example, carbon-12, carbon-13, and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13, and 14, respectively.
For example, the allotropes of carbon include diamond (the carbon atoms are bonded together in a tetrahedral lattice arrangement), graphite (the carbon atoms are bonded together in sheets of a hexagonal lattice), graphene (single sheets of graphite), and fullerenes (the carbon atoms are bonded together in spherical