Arrange the following in the increasing order | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) According to the $(n+l)$ rule,the energy of an orbital increases as the value of $(n+l)$ increases. If $(n+l)$ values are the same,the orbital wit

Vedclass · Accepted Answer

$(i) < (ii) < (iv) < (iii)$

Vedclass · Answer

(A) According to the $(n+l)$ rule,the energy of an orbital increases as the value of $(n+l)$ increases. If $(n+l)$ values are the same,the orbital with the lower $n$ value has lower energy.$(i)$ $n=2, l=0 \implies n+l = 2+0 = 2$ ($2s$ orbital)$(ii)$ $n=2, l=1 \implies n+l = 2+1 = 3$ ($2p$ orbital)$(iii)$ $n=3, l=2 \implies n+l = 3+2 = 5$ ($3d$ orbital)$(iv)$ $n=3, l=1 \implies n+l = 3+1 = 4$ ($3p$ orbital)Comparing the $(n+l)$ values: $2 Therefore,the increasing order of energy is: $(i) < (ii) < (iv) < (iii)$.

Column-$I$	Column-$II$
$(a)$ $4s$	$(p)$ Circular orbit around nucleus
$(b)$ $4p$	$(q)$ Non-directional orbital
$(c)$ $1s$	$(r)$ Angular momentum $= 2h/\pi$
$(d)$ $3d$	$(s)$ Radial node is zero

Arrange the following in the increasing order of their energy:
$(i)$ $n = 2, l = 0, m_l = 0, m_s = +\frac{1}{2}$
$(ii)$ $n = 2, l = 1, m_l = +1, m_s = -\frac{1}{2}$
$(iii)$ $n = 3, l = 2, m_l = +1, m_s = -\frac{1}{2}$
$(iv)$ $n = 3, l = 1, m_l = -1, m_s = +\frac{1}{2}$

Similar Questions

For a $d$ electron,the orbital angular momentum is

An atom has $2$ electrons in $K$ shell,$8$ electrons in $L$ shell and $6$ electrons in $M$ shell. The number of $s$-electrons present in that element is

Match the columns and choose the correct option:

Column-$I$ Column-$II$

$(a)$ $4s$ $(p)$ Circular orbit around nucleus

$(b)$ $4p$ $(q)$ Non-directional orbital

$(c)$ $1s$ $(r)$ Angular momentum $= 2h/\pi$

$(d)$ $3d$ $(s)$ Radial node is zero

For a given azimuthal quantum number $(l)$,the total number of magnetic quantum numbers $(m)$ is given by:

The magnetic quantum number for the valence electron of sodium is

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Arrange the following in the increasing order of their energy:$(i)$ $n = 2, l = 0, m_l = 0, m_s = +\frac{1}{2}$$(ii)$ $n = 2, l = 1, m_l = +1, m_s = -\frac{1}{2}$$(iii)$ $n = 3, l = 2, m_l = +1, m_s = -\frac{1}{2}$$(iv)$ $n = 3, l = 1, m_l = -1, m_s = +\frac{1}{2}$