Element atomic number 7
Nitrogen is an element.
Ammonia is a compound, composed of one nitrogen atom and three hydrogen atoms. It is not an element nor a mixture.
Nitrogen is an element. It can be found in the periodic table.
Saltpeter is a compound consisting of potassium nitrate, which is a mixture of potassium, nitrogen, and oxygen elements.
Silver nitrate is a compound composed of the elements silver, nitrogen, and oxygen. It is not a pure element, but a chemical compound.
Element: oxygen, potassium Compound: sodium chloride, potassium dichromate Mixture: air, orange juice
ammonium nitrate is a compound. It is neither element nor mixture.
Element atomic number 7
Nicotine is a compound, not an element. It is a chemical compound made up of carbon, hydrogen, nitrogen, and sometimes oxygen atoms.
Air is a mixture, made mostly of the elements nitrogen and oxygen. It also has some other gases, such as argon (element), carbon dioxide (compound), and water (compound).
Neither. Oxygen is an element. In the air it forms a mixture with nitrogen, carbon dioxide, etc.
Nitrogen is an element . Nitrogen gas, however, is often called nitrogen and is a molecule consisting of two nitrogen atoms bound together. Thus it may be considered to be a compound.