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The number valence electrons in Na+ ions are ___ (options are 8,10,11,12) give answer with explanation 2)why we hear sound of a horn of an approaching car

before the car reaches us?


The answer is 8
element sodium has atomic number 11 so its electronic configuration is
So it loses 1 electron to form Na+ ion
0 0 0
The answer is 8.............
0 0 0
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