316
227-89 = 138
316 - 89 = 227
Actinium (Ac) Atomic Number: 89 Atomic Weight: 227 Protons: 89 Electrons: 89 Neutrons: 138 -----(227-89=138)
The sum of 89 is simply 89 itself, as it is a single number. If you are asking for the sum of multiple instances of 89, you would need to specify how many instances there are. For example, the sum of two instances of 89 would be 178.
224 rn 86
It is: 27+89 = 116
70 + 19 = 89 or: the sum of 70 and 19 is 89
Actinium (Ac) Atomic Number: 89 Atomic Weight: 227 Protons: 89 Electrons: 89 Neutrons: 138 -----(227-89=138)
34.6 + 89 = 123.6
67 + 89 = 156
100
The sum of 101 and 89 is 190.