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

$Cu^{2+}$ will have the following electronic configuration:

The number of angular and radial nodes of $4d$ orbital respectively are

The $3p$ orbital has ........

If $l = 3$,what is the number of orbitals and their type?

Five valence electrons of $P^{15}$ are labelled as $\boxed{AB}_{3s} \,\boxed{X|Y|Z}_{3p}$. If the spin quantum numbers of $B$ and $Z$ are $+\frac{1}{2}$,the group of electrons with three of the quantum numbers $(n, l, m)$ the same are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module