Q. 84.0( 7 Votes )
The element belongs to Group 16 and Period 3 of the periodic table. The valency of the element is 2.
1. The electronic configuration of a given element is 2, 8, 6 which means the atomic number of the element can be determined as follows:
Atomic Number of X = 2 + 8 + 6
2. Since the atomic number of element X is 16, it belongs to Group 16 of the periodic table. The element X contains electrons in three shells, and hence the element belongs to the third period of the periodic table.
3. Valency is the number of electrons required to attain a stable octet of the nearest noble gas configuration. In this, the case the nearest noble gas configuration is 2, 8, 8 and hence the valency of the element X is 2 as it requires only two electrons to attain stable octet.
4. The element X is Sulphur and it belongs to Oxygen family.
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