Table salt is NaCl: sodium is an alkali metal, chlorine is a halogen.
Sodium fluoride: sodium is an alkali metal, fluorine is a halogen.
Yes
Toothpaste and mouthwash often contain sodium fluoride.
This toothpastes contain sodium fluoride (NaF), tin fluoride (SnF2), sodium monofluorophosphate(NaPO3F), etc. as fluoride source.
Normally toothpastes contain a fluoride such as sodium fluoride and also a whitening agent such as bicarbonate of soda.
Most toothpastes do contain fluoride. Usually it is written on the label. Fluoride can give an extra protection to teeth from decay. But it is not recommended for children because if they swallow too much of it, they can develop fluorosis (stains on teeth that are unesthetic but harmless).
Crest
It does not have the actual rocks in them, but it does contain some products derived from minerals. Most notable is the fluoride. In most toothpaste it is in the form of sodium fluoride, which is derived from the mineral fluorite, also known as calcium fluoride.
Fluoride toothpaste is a active key ingredient in toothpaste that fights cavities, gingivitis, plaque build-up, tartar and bad breath(from the bacteria in your mouth). It is in all toothpaste's such as Colgate or Crest. On the label it says not to swallow and that it should be external use, not internal. Unfortunately, according to recent studies on Oral and dental health care, people have died from ingesting fluoride toothpaste, so they are trying to come up with alternative solutions to this problem.
Fluoride is found in most, but not all. Some also contain sodium bicarbonate for whitening, but again, not all.
There are four elements in NH4F.They are Nitrogen,Fluorine and Hydrogen.
The foaming action and surfactants are not nearly as important as the brushing itself. The main reason for using toothpaste is that it provides fluoride to strengthen the teeth. (Some also contain whitening or sensitivity agents.)
All periodic table groups contain elements with radioactive isotopes.