Sugar and salt
All organic compounds have carbon as a common characteristic.
There are no 'common' compounds of krypton.
no
They both compose of Atoms (:
salt or water
Another common characteristic of these compounds is their ability to form crystals or have a crystalline structure in their solid state.
Some of the most common plastic compounds include polymers made of chains of carbon atoms, or those with carbon and oxygen, sulfur, or nitrogen. Other compounds include inorganic compounds such as Organotin compounds, which are tin linked to hydrocarbons.
Organic compounds are more common.
+4 (in most inorganic compounds) and -4 or -3 (in organic compounds)
Common compounds for helium include helium-3 (He-3) and helium-4 (He-4), which are isotopes of helium. Helium is typically chemically inert and does not readily form compounds with other elements under normal conditions.
One example of an ion common to two or more ionic compounds is the chloride ion (Cl-). It can be found in compounds like sodium chloride (NaCl) and potassium chloride (KCl).
hydrochloric acid