Atomic Structure Mock Tests

Which set of quantum numbers is correct for an electron in a 4f orbital?

The de Broglie wavelength associated with an electron accelerated through a potential difference of 100 V is approximately: (h = 6.626 × 10⁻³⁴ J·s, mₑ = 9.1 × 10⁻³¹ kg, e = 1.6 × 10⁻¹⁹ C)

Which of the following sets of quantum numbers is NOT permitted for an electron in an atom?

Which quantum number determines the shape of an atomic orbital?___SEQ___16

An electron and a proton are accelerated through the same potential difference V. What is the ratio of their de Broglie wavelengths λₑ/λₚ?

The threshold wavelength for photoelectric emission from a metal surface is 520 nm. Which of the following wavelengths will cause photoelectric emission? (h = 6.626 × 10⁻³⁴ J·s, c = 3 × 10⁸ m/s)

Which of the following sets of quantum numbers is not allowed for an electron in an atom?

The work function of cesium is 2.14 eV. The threshold wavelength for cesium is: (h = 6.626 × 10⁻³⁴ J·s, c = 3 × 10⁸ m/s, 1 eV = 1.6 × 10⁻¹⁹ J)