atomic number 13

ریشه

The term 'atomic number' comes from the combination of 'atomic' meaning related to atoms and 'number' indicating a numerical value. The concept of atomic number was developed by the chemist Henry Moseley in 1913.

مثال

• Element 13 has an atomic number of 13.
• The atomic number determines the position of an element in the periodic table.
• Scientists discovered the atomic number of element 13 through experiments.