Questions
In which of the following systems will the radius of the first orbit (n=1) be minimum?
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a
Doubly ionized lithium
b
Singly ionized helium
c
Deuterium atom
d
Hydrogen atom
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Correct option is A
Radius of first orbit, r∝1/Z. For doubly ionized lithium, Z will be maximum. Hence, for doubly ionized lithium r will be minimum.Similar Questions
The kinetic energy of electron in the first Bohr orbit of the hydrogen atom is
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