An atom has 35 nucleons and an atomic number | vedclass

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

Question

(B) The atomic number $Z = 17$. The electronic configuration is $1s^2 2s^2 2p^6 3s^2 3p^5$.For $n = 2$,the subshells are $2s$ and $2p$.In $2s$ subshel

Vedclass · Accepted Answer

$4$

Vedclass · Answer

(B) The atomic number $Z = 17$. The electronic configuration is $1s^2 2s^2 2p^6 3s^2 3p^5$.For $n = 2$,the subshells are $2s$ and $2p$.In $2s$ subshell,$l = 0$,so $m = 0$. There are $2$ electrons in $2s$ orbital $(m = 0)$.In $2p$ subshell,$l = 1$,so $m = -1, 0, +1$. There are $6$ electrons in $2p$ subshell,with $2$ electrons in each orbital $(m = -1, 0, +1)$.Thus,the $2p$ orbital with $m = 0$ contains $2$ electrons.Total number of electrons with $n = 2$ and $m = 0$ is $2$ (from $2s$) $+ 2$ (from $2p$) $= 4$.

An atom has $35$ nucleons and an atomic number equal to $17$. The number of electrons with $n = 2$ and $m = 0$ in it is:

Similar Questions

The correct set of four quantum numbers for the valence electron of rubidium $(Z = 37)$ is:

For principal quantum number $n = 4$,the total number of orbitals having $l = 3$ is:

For $n = 4$,what is the total number of orbitals?

The difference between the orbital angular momentum of an electron in a $4f$ orbital and another electron in a $4s$ orbital is

$(i)$ 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 $3f$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module