Which one of the following statements is correct?

CHEMISTRY · Single correct · AP · Chemistry · Atomic Structure and Properties · Atomic Structure and Properties

Problem

Which one of the following statements is correct? (1) 2's' orbital is spherical with two nodal planes (2) The de Broglie wavelength (

\lambda

) of a particle of mass 'm' and velocity 'V' is equal to

mV/h

(3) The principal quantum number (

n

) indicates the shape of the orbital (4) The electronic configuration of phosphorous is given by

[Ne]\ 3s^2\ 3p_x^1\ 3p_y^1\ 3p_z^1