Question
What was the basic classification of element in ancient time? Name them.
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$^{16}_{\ 8}\text{O},\ ^{17}_{\ 8}\text{O}\text{ and }^{18}_{\ 8}\text{O}$
Atomic Number | Mass Number | Number of Neutrons | Number of Protons | Number of Electrons | Name of the Atomic Species |
9 16 - - - | - 32 24 2 1 | 10 - - - 0 | - - 12 1 1 | - - - - 0 | - Sulphur - - - |