The Earth Contents

1. Structure

Below are the chemical abbreviations of the main constituent chemicals of the Earth

Aluminium Al Copper Cu
Iron Fe Cobalt Co
Magnesium Mg Lead Pb
Potassium K Boron B
Titanium Ti Beryllium Be
Hydrogen H Arsenic As
Phosphorous P Tin Sn
Manganese Mn Molybdenum Mo
Fluorine F Uranium U
Sulphur S Tungsten W
Chlorine Cl Silver Ag
Vanadium V Mercury Hg
Chromium Cr Platinum Pt
Zinc Zn Gold Au
Nickel Ni    

Give the chemical abbreviations for Zinc, Potassium, Copper, Platinum and Tungsten.