VITEEE 2022 | Atomic Structure Question 5 | Chemistry

An electron in H-atom in its ground state absorbs 1.50 times as much as energy as the minimum required for its escape $$(13.6 \mathrm{~eV})$$ from the atom. Thus, KE given to emitted electron is

13.6 eV

20.4 eV

34.0 eV

6.8 eV

VITEEE 2021

MCQ (Single Correct Answer)

-0

What is the total number of electrons that can have the values $$n=2, l=1, s=1 / 2$$ in the electronic configuration $$1 s^2 2 s^2 2 p^3$$ ?

VITEEE 2021

MCQ (Single Correct Answer)

-0

Calculate the wavelength associated with an electron moving with a velocity of $$10^6 \mathrm{~m} / \mathrm{s}$$ (mass of electron $$=9.1 \times 10^{-31} \mathrm{~kg}, h=6.6 \times 10^{-34} \mathrm{~kg} \mathrm{~m}^2 \mathrm{~s}^{-1}$$ )

$$6.2 \times 10^{-8} \mathrm{~m}$$

$$7.25 \times 10^{-8} \mathrm{~m}$$

$$6.25 \mathop A\limits^o$$

None of these

VITEEE 2021

MCQ (Single Correct Answer)

-0

Which of the following pairs is not correctly matched?

Hund's rule In orbitals of equivalent energy electron spins remain unpaired if possible

Pauli's exclusion principle No two electrons can have all the four quantum numbers identical

Zeeman effect The effect of magnetic field on the automatic spectra

Uncertainty principle It is impossible to determine the position of an electron

Questions Asked from MCQ (Single Correct Answer)

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English