Chemistry Questions

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What is the value of 4πr²ψ² at the nucleus?

Constant

Maximum (correct)

Zero

Minimum

What is the relationship between the de-Broglie wavelength and velocity of a particle?

Wavelength is proportional to velocity

Velocity is 100 times the wavelength

Velocity is inversely proportional to wavelength

Wavelength is 100 times the velocity (correct)

What is the frequency of radiation emitted when an electron falls from n = 4 to n = 1 in a H-atom?

1.03 × 10¹⁵ s⁻¹

1.54 × 10¹⁵ s⁻¹

2.00 × 10¹⁵ s⁻¹

3.08 × 10¹⁵ s⁻¹ (correct)

What is the representation of the orbital having 3 angular nodes and n = 5?

5f Signup and view all the answers

Which element has its valence electron in the highest energy orbital?

¹⁶S Signup and view all the answers

Which of the following is not a permissible arrangement of electrons in an atom?

n = 3, l = 2, m = -3, s = -1/2 Signup and view all the answers

What is the shape of the orbital with one radial node and one angular node?

Dumbbell Signup and view all the answers

What is the Aufbau principle in atomic physics?

Electrons occupy the lowest available energy levels Signup and view all the answers

What is the maximum number of electrons in a subshell with l = 2?

10 Signup and view all the answers

What is the quantum number that determines the orientation of an orbital?

m Signup and view all the answers

Chemistry Questions

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Questions and Answers

What is the value of 4πr²ψ² at the nucleus?

What is the relationship between the de-Broglie wavelength and velocity of a particle?

What is the frequency of radiation emitted when an electron falls from n = 4 to n = 1 in a H-atom?

What is the representation of the orbital having 3 angular nodes and n = 5?

Which element has its valence electron in the highest energy orbital?

Which of the following is not a permissible arrangement of electrons in an atom?

What is the shape of the orbital with one radial node and one angular node?

What is the Aufbau principle in atomic physics?

What is the maximum number of electrons in a subshell with l = 2?

What is the quantum number that determines the orientation of an orbital?

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