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 ...

The atom with eight protons in its nucleus (atomic number 8) is oxygen. Each energy level holds a certain number of ... After the second level has 8 electrons, the next electron goes into the third ...

Russia's state nuclear corporation Rosatom says it has created a technology for processing liquid radioactive sodium coolant ...

A small piece of sodium metal is placed in a flask of chlorine gas. A little water helps expose the sodium so it can react with the chlorine gas. The reaction releases a lot of heat as the ionic ...