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 ...

If you know the proton number and nucleon number you can calculate the number of each sub-atomic particle in an atom. The full chemical symbol for an element shows its nucleon number (A ...

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 ...

Nickel is a metal in group VIII of the periodic table with atomic number 29, an atomic weight of 58.71, and a density of 8.9. It has a melting point of 1453 C. The electronic configuration for the Ni ...