alleryFor orbital quantum number $l$, the magnetic quantum number $m_l$ takes values
A$\pm 1/2$
B$1, 2, \ldots, l$
C$0, 1, 2, \ldots, l$
D$-l, -l+1, \ldots, 0, \ldots, l-1, l$
Answer & Solution
Correct answer: D. $-l, -l+1, \ldots, 0, \ldots, l-1, l$
$m_l$ takes $2l+1$ values: $-l, -l+1, \ldots, 0, \ldots, +l$.
So p ($l=1$) has 3 orientations ($-1, 0, +1$ = $p_x, p_y, p_z$)
d ($l=2$) has 5; etc.
Keep practising Structure of Atom
Browse all Structure of Atom questions for AP Intermediate 1st Year, or explore more Chemistry topics.
Related questions
NEET · Chemistry · Quantum NumbersIn the photoelectric effect, the kinetic energy of ejected electrons is:The electronic configuration of Cr (Z=24) is an exception, written as:By the AUFBAU principle, the 3d subshell starts filling:Hund's rule states that electrons in degenerate orbitals:Heisenberg's uncertainty principle is most accurately stated as:The de Broglie wavelength of a particle with momentum p is:The energy of the nth orbit in a hydrogen atom (Bohr's model) is: