Elements To Know
You are required to know the following elements and their symbols.  You do not need to know their atomic number or mass number, however you should the general location of each of these elements within the periodic table – i.e., potassium is located in the left side of the table, chlorine is located on the right side.  Here is your list:
Hydrogen – H
Helium – He
Lithium – Li
Beryllium – Be
Boron – B
Carbon – C
Nitrogen – N
Oxygen – O
Fluorine – F
Neon – Ne
Sodium – Na
Magnesium – Mg
Aluminum – Al
Silicon – Si
Phosphorous – P
Sulfur – S
Chlorine – Cl
Argon – Ar
Potassium – K
Calcium – Ca
Titanium – Ti
Chromium – Cr
Manganese – Mn
Iron – Fe
Cobalt – Co
Nickel – Ni
Copper – Cu
Zinc – Zn
Bromine – Br
Krypton – Kr
Silver – Ag
Tin – Sn
Iodine – I
Barium - Ba
Platinum – Pt
Gold – Au
Mercury – Hg
Lead – Pb