The periodic table can be read across from left to the right along the rows horizontally ... The first Group 1 element, lithium, has the highest melting point at 180°C. The melting points ...

They include lithium, sodium and potassium, and are placed in the first vertical column on the left of the periodic table. All the Group 1 elements are very reactive, and all react with water to ...

Here are some popular mnemonics to help you remember the first 20 elements of the periodic table: H - Hydrogen He - Helium Li - Lithium Be - Beryllium ...