Titanium - Metal used in hip replacements, Iron - Main metal used in steel , Alloy - A mixture of elements , Fluorine - The most reactive halogen, Transition - Name of the metallic group in the middle of the Table , Caesium  - Most reactive (non radioactive) alkali metal, Noble - Name of gases in group 0, Halogens - Name of group 7 , Alkali - Name of the metals in group 1, Two - Calcium is in this group , Liquids - Hg and Br are this at room temperature, Catalyst - Transition metals are good.....?, Variable - Oxidation states of the Transition metals , Nickel - Catalyst in the making of margarine ,

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