The electron configuration of an element is shown below. 1s22s22p63s1 Name the group this element belongs to in the periodic table and explain your answer. Based on the electron configuration, write one chemical property of this element.

Answer: Sodium, group one, because in total the electron configuration shows 11 electrons and the only element with 11 electrons is sodium, a chemical property of sodium is it reacts quickly with water to produce sodium hydroxide and hydrogen.