Element | Atomic number | Proton | Electron | Neutron | Mass number |
A B C | 17 | 14 9 | 17 14 9 | 18 14 | 19 |
Answer:
(i) Electronic configuration of sulphur (S): Oxygen
(0) : 2, 6
(ii) Valency of both sulphur and oxygen is 2.
(iii) No, they are not isotopes as their atomic numbers are different.
Since, isotopes are the elements having the same atomic number but different
mass number.
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