compounds
Crystals can be elements (as diamond) or compounds (as sapphire).
Crystals can be elements (as diamond) or compounds (as sapphire).
Crystals are the result of a chemical reaction of multiple elements and/or compounds.
Usually ionic compounds form crystals when in their solid state.
Kind of a tricky question, its best broken into the 2 different ways that the word crystal is used. Crystal can refer to the structure that a compound adopts, there are many different types, the most well known being the structure of salt with what crystallographers call a face centered cubic structure. It is also common to see in reports etc... on the synthesis of organic compounds to say a compound gives white crystals. It is not correct however to assume that crystals that look similar to the naked eye are indeed the same compound, or that all compounds have a crystalline form.
Chemical compounds are formed from chemical elements.
elements and compounds
No, crystals are chemical compounds that are not considered to be alive.
Elements and compounds
Compounds are made of elements. Elements are the smallest units of the compounds. Elements are bond to make compounds.
Compounds do not form elements. Elements form compounds.