It is a tooth but not just any tooth, a dinosuars molar tooth.
It is a non-metal.
The element nickel shares its name with the American or Canadian 5 cent piece. This is because the coin was made out of that metal or its alloy. The element was named in 1751, by Baron Axel Fredrik Cronstedt who first isolated it. In the United States, the term "nickel" was first applied to coins in 1859.
Fr is the symbol for the radioactive element francium.
As the name would suggest, the mass of Oxygen-18 is 18.
The element named after Ruthenia is Ruthernium.
The crown has dentin covered by enamel, each root has dentin covered by cementum. The inner portion of the dentin of both the crown and the root also covers the pulp cavity of the tooth close to the CEJ.
"Phosphor" is not the name of any element and therefore can not be an alkaline earth metal. "Phosphorus" is the name of an element, but it is not a metal at all.
Native Metal
It is called sodium fluoride, and it is used in toothpastes and in fluoridation of water, because the fluoride strengthens tooth enamel.
It is a non-metal.
The cation is the metal "Cu", otherwise known as the element Copper.
The chemical element "sodium" is an alkali metal.
Helium, Hydrogen, Nitrogen, Carbon.
It is in the family name of transition metals Enjoy:D
Potassium is a chemical element with the symbol K and the atomic number 19. It is a soft silvery-white alkali metal.
The element with atomic number of 91 is protactinium, Pa. It is an inner transition metal.
Stibium is the Latin name of the element Antimony(Sb) which is a metalloid.