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Atomic Number and Mass Number

Which is corr...

Question

Which is correct statement about proton?

A

Proton is nucleus of deuterium.

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B

Proton is ionized oxygen molecule.

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C

Proton is ionized hydrogen atom.

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D

None of these

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Solution

The correct option is C Proton is ionized hydrogen atom.
When a hydrogen atom loses an electron, it becomes an ion having only one proton and no electrons. So, we can say that a proton is an ionised hydrogen atom.

$H L o s e s e l e c t r o n - ------- \to H^{+} (p r o t o n)$

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Q. Statement I: The angular momentum of an electron in the third orbit of singly ionized helium atom is same as in the third orbit of hydrogen atom or third orbit of doubly ionized Lithium atom.

Statement II: The angular momentum of an electron in Bohr's atomic model is independent of the no of protons in the nucleus and is quantized.

Which of the options are correct?

Q. A helium nucleus (also called as

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\times 10^{6} m / s .

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