Question

An element is represented as8X16. 3M(a) Write its electronic configuration.(b) How many valence electrons it has?What is its valency?(c)Will it form a cation or anion ? Represent the symbol of its ion.

Answer 1

Answer:

The electronic configuration of many ions is that of the closest noble gas to them in the periodic table.

An anion is an ion that has gained one or more electrons, acquiring a negative charge.

A cation is an ion that has lost one or more electrons, gaining a positive charge

Answer 2

Answer:

Answer

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Element 'X' is sulphur(2,8,6)

Thus, it's atomic number will be =2+8+6=16

Thus the element is Si

It belongs to p-block of periodic table.

Its electronic configuration can also be written as [Ne]3s23p4

Thus it belongs to 3rd period

Group number =16

Its valency will be 8−6=2