atomic number 4

ریشه

The term 'atomic number' originated from the combination of 'atomic' (from Greek 'atomos' meaning 'indivisible') and 'number' (from Latin 'numerus').

مثال

• Beryllium has an atomic number of 4.
• The atomic number 4 indicates the number of protons in a beryllium atom.
• The atomic number 4 is used to identify beryllium in the periodic table.