code: def chemical_element(self, name_only: bool = True) -> Union[dict, str]:
          
          elements = self._data['chemical_element']
          nm, sm, an = self.random.choice(elements).split('|')
  
          if not name_only:
              return {
                  'name': nm.strip(),
                  'symbol': sm.strip(),
                  'atomic_number': an.strip(),
              }
  
          return nm.strip()
docs: Generate a random chemical element.
  
          :param name_only: If False then will be returned dict.
          :return: Name of chemical element or dict.
          :rtype: dict or str
  
          :Example:
              {'Symbol': 'S', 'Name': 'Sulfur', 'Atomic number': '16'}