There are 118 elements in the periodic table, each with a unique symbol and atomic number. Symbol: A one or two-letter abbreviation used to represent the element. Atomic number: The number of ...

What about krypton. Mass number 84, atomic number 36. So, dear podcast listening friend, how many protons, neutrons and electrons must krypton have? You can hit the pause button if you need to ...

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