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FLUORINE

Fluorine is a poisonous pale yellow gaseous element and belongs to the group VII of the periodic table. Fluorine is the most electronegative element and also the strongest oxidizing agent known. It is characterised by

Atomic number 9

Relative atomic mass 18.9984

Density 1.7g/dm3

Melting point -219OC

Boiling point -1881OC

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OXYGEN
Oxygen is a colourless, odourless and a gaseous element belonging to the VIth group of the periodic table. In the natural state it occurs in the atmosphere, about 21% by volume. It is an essential component of all living matter. It is the most abundant element and forms about one-half of the earth’s crust ( […]