for which orbit in He+ion,the circumference is 26.5A°. a)2,b)3,c)4,d)16
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option (b) 3 is the right ans ......
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(c) 4
Given,
that the circumference for ions is 26.5A°
The formula of circumference =
Putting the formula,
upon solving the above equation,
r= 4.21A°
As helium ions behave as a hydrogen atom,
so, the formula for the radius will be,
where, z is the atomic number, and n is the orbit
so, for ions, the orbit with the above circumference is,
round off is 16
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