Gold can be flattened into an extremely thin sheet

Gold can be flattened into an extremely thin sheet.  this malleability of gold is due to the  nature of the bonds between gold atoms. 
gold is highly malleable and flexible.
gold can be beaten into thin sheets, only a few millionths of an inch thick.
these sheets, known as gold leaf, are displayed on buildings throughout the world,
such as st. michael’s cathedral in kiev, ukraine.

Enzyme make a hormone as a catalyst

All the elements are arranged by melting points on the periodic table. in row they go from metals to gasses. in the row from sodium to argon, sodium is more reactive than the one on its right, magnesium.