Helium doesnot form any compounds.
Promethium salts, oxides, and halides are common compounds of promethium. Promethium oxide (Pm2O3) and promethium chloride (PmCl3) are among the compounds that can be formed with promethium.
Hydrogen (H) Helium (He) Oxygen (O)
Examples: XeF2, XeO3, XeOF2.
sodium chloride, sodium carbonate, sodium bicarbonate
Helium, neon and argon are the least likely elements to form compounds.
The three common compounds of neptunium are neptunium dioxide (NpO2), neptunium trichloride (NpCl3), and neptunium tetrafluoride (NpF4).
Examples (in the sense of non-radiactive): helium, oxygen, fluorine, argon, lanthanum, hafnium lithium etc.
Examples: sodium chloride, acetic acid, ethanol, ammonia solution, sulfuric acid.
there are very many... sugar, salt, and water are all compounds hope that helps(:
1. High constintrations of hyrdrogen and helium, 2. Frequent volcanic eruptions, 3. Outgassing.
Three examples of compounds are water, acetic acid, and nitrogen gas. They consist of two or more different elements. Three examples of mixtures are air (homogeneous), soil (heterogeneous), and salt water (homogeneous). They consist of substances that don't mix.Hope that helped! :D
Water (H2O), salt (NaCl), and glucose (C6H12O6) are examples of compounds that are commonly encountered in everyday life.