The reaction releases a lot of heat as the ionic compound sodium chloride is formed. A sodium and chlorine atom are near each other. An electron from each atom feels the attraction from the other atom ...

For example, the atomic number of sodium is 11. Every sodium atom has 11 protons and 11 electrons. It has 11 positive charges and 11 negative charges. The mass number of an atom is its total ...

Many car airbag inflators contain small amounts of a toxic molecule called sodium azide, or NaN 3 (one sodium atom and three nitrogen atoms combined). Sodium azide breaks down very quickly when heated ...