For a sodium atom,the number of electrons wit | vedclass

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

Question

(B) The electronic configuration of a sodium atom $(Z = 11)$ is $1s^2 2s^2 2p^6 3s^1$.For $m = 0$,the electrons must be in $s$-orbitals or $p_z$-orbit

Vedclass · Accepted Answer

$7$

Vedclass · Answer

(B) The electronic configuration of a sodium atom $(Z = 11)$ is $1s^2 2s^2 2p^6 3s^1$.For $m = 0$,the electrons must be in $s$-orbitals or $p_z$-orbitals.In $1s^2$,there are $2$ electrons with $m = 0$.In $2s^2$,there are $2$ electrons with $m = 0$.In $2p^6$,the orbitals are $2p_x, 2p_y, 2p_z$. The $2p_z$ orbital has $m = 0$ and contains $2$ electrons.In $3s^1$,there is $1$ electron with $m = 0$.Total number of electrons with $m = 0$ is $2 + 2 + 2 + 1 = 7$.

For a sodium atom,the number of electrons with $m = 0$ will be:

Similar Questions

Which electron is associated with the least energy?

$(i)$ An atomic orbital has $n=3$. What are the possible values of $l$ and $m_l$?
$(ii)$ List the quantum numbers ($m_l$ and $l$) of electrons for $3d$ orbital.
$(iii)$ Which of the following orbitals are possible? $1p$,$2s$,$2p$,and $3f$.

What is the total number of orbitals present in $N$ shell?

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

Which electronic configuration must represent an atom in an excited state?

Vedclass Test Series

Exam Paper Generator

Online Exam Module