MCQ
Total number of electrons in $“Cu”$ atom having $m_l = 0$
- A$9$
- ✓$13$
- C$10$
- D$6$
✓
Answer
Correct option: B.
$13$
b
Electronic configuration of $Cu(29) = 1s^2\ 2s^2\ 2p^6\ 3s^2\ 3p^6\ 4s^1\ 3d^{10}$
Electronic configuration of $Cu(29) = 1s^2\ 2s^2\ 2p^6\ 3s^2\ 3p^6\ 4s^1\ 3d^{10}$
$\therefore m_l = 0$ will be $= 2 + 2 + 2 + 2 + 2 + 1 + 2 = 13$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The most stable carbocation for the following is:
In which of the following pairs, the ions are iso-electronic?
Oxidation state of $"S"$ in Peroxodisulphuric acid and Sodium tetrathionate are
→Which of the following has maximum mass
Compare the properties of metals and non-metals with respect to electronic configuration.
Addition of conc. $HCl$ to saturated $BaC{l_2}$ solution precipitates $BaC{l_2}$; because
→For complete combustion of methanol
→$CH _{3} OH (1)+\frac{3}{2} O _{2}( g ) \rightarrow CO _{2}( g )+2 H _{2} O (1)$
the amount of heat produced as measured by bomb calorimeter is $726 \,kJ\, mol ^{-1}$ at $27^{\circ} C$. The enthalpy of combustion for the reaction is $- x \,kJ\,mol ^{-1}$, where $x$ is $.....$ (Nearest integer)
$\left(\right.$ Given $: R =8.3\, J\,K ^{-1} \,mol ^{-1}$ )
Species having maximum $'Cl-O'$ bond order is
→$N{H_4}COON{H_{2(s)}}$ $\rightleftharpoons$ $2N{H_{3(g)}} + C{O_{2(g)}}$ if equilibrium pressure is $3\, atm$ for the above reaction ${K_p}$ for the reaction is
→Which of the following is $D-$ isomer
→