adding keys in nested dictionary in python

Question

elements = {\'hydrogen\': {\'number\': 1, \'weight\': 1.00794, \'symbol\': \'H\'}, 
            \'helium\': {\'number\': 2, \'weight\': 4.002602, \'symbol\': \'He\'}}
         


        

Answer 1

elements['hydrogen']['is_noble_gas'] = False
elements['hydrogen']['is_noble_gas'] = True