Question

structural isomers are chemical compounds that have
the same atoms that are arranged in different orders.
the same atoms that are arranged in the same order.
the same types of bonds that are bonding the same number of carbon atoms to different atoms.
different types of bonds that are bonding the same number of carbon atoms to different atoms.

Explanation:

Structural isomers are defined as compounds with the same molecular formula (same atoms) but different structural arrangements (different orders of arranging atoms). The second option is incorrect as same order would not be isomers. The third and fourth options are incorrect as structural isomers relate to atom arrangement, not bond types or specific carbon - atom bonding to different atoms in that way. So the correct description is the first option.

Answer:

the same atoms that are arranged in different orders.