Two elements in group 1 of the periodic table are lithium and sodium. Very small pieces of lithium and sodium were reacted separately with water. Describe the similarities and differences in what ...

often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic number. Scientists use the periodic ...

In your answer, use ideas about electronic structure to explain differences in chemical properties. [6 marks] Group 1 of the periodic table contains the alkali metals lithium, sodium and potassium.