an element x has a mass number 4 and atomic number 2 find the velency of x
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0
Answer:
0
Explanation:
Electronic configuration of 'X' = 2 i.e. K shell is completely filled so, there is no valence electron and hence valency is zero.
Answered by
0
Answer:
x has atomic no. 2 so it gas 2 electron.
The valency of element x is 0
because its electron are stable in the K shell.
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