Converse of object

• contain: Belgium is banning several products containing fluorine because it causes ' brittle bone disease ' .

• introduce: New methods of introducing fluorine We continue to seek new methods of introducing fluorine to molecules.

• add: To achieve the speed gain, researchers at the University of Southampton added fluorine to the silicon devices.

• consider: It will consider fluorine when the findings of a review of fluorine by the Expert Group on Vitamins and Minerals are available.

• produce: The use of electricity produced the fluorine at the positive terminal.

• include: The snag comes if you try to expand the argument to include fluorine.

Adjective modifier

• elemental: A novel approach using elemental fluorine, J Fluorine Chem, 69, 19-24.

Modifies a noun

• atom: In addition, each fluorine atom has 3 very active lone pairs of electrons.

• chemistry: In addition the School of Chemistry has two dedicated areas for fluorine chemistry.

• compound: The atmospheric fluorine compounds include inorganic gases and particles, and about a dozen organic compounds.

• content: It is generally believed that the exceptional development of igneous layering in Gardar intrusions reflects universally high magmatic fluorine contents.

• concentration: The fluorine concentrations in the Beverages group in the Canadian study were 1.2 mg/kg compared with 1.1 mg/kg in this study.

• gas: At about 662 degrees Fahrenheit, fluorine gas is released.

Noun used with modifier

• and/or: There is a reaction between the aluminum oxide and the cryolite to produce a range of complex ions involving aluminum, oxygen and/or fluorine.

• element: HALIDES Binary compounds containing anions of the elements fluorine, chlorine, bromine, iodine or astatine.

Preposition: in

• water: Fluorine in drinking water Drinking water can also be a significant source of exposure to fluorine.

Preposition: for

• process: Fluorine for the manufacturing process was generated on-site by electrolysis of a molten metallic fluoride ( perhaps potassium fluoride KF?