Total number of d electrons present an element with atomic no. 78… - Vidyadip

MCQ

Total number of $d$ electrons present an element with atomic no. $78$ is

A
$8$
B
$58$
C
$28$
✓
$29$

✓

Answer

Correct option: D.

$29$

d
${}_{78}Pt = 3{d^{10}} + 4{d^{10}} + 5{d^9} = 29\,{e^{ - 1}}s$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Consider following reaction

$S{e_2}C{l_2} \to Se + A$

Choose $CORRECT$ option

Calculate the half life of the first-order reaction $C_2H_4O(g) \to CH_4(g) + CO(g)$ If the initial pressure of $C_2H_4O(g)$ is $80\, mm$ and total pressure at the end of $20$ $minutes$ is $120\, mm$ .......... $\min$

Which among the following factors is the most important in making fluorine, the strongest oxidising halogen ?

Select the evidence for the open chain structure of glucose

The correct order of ionic radii of $Ce, La, Pm$ and $Yb$ in $+3$ oxidation state is

Identity the incorrect pair from the following:

A first order reaction has a specific reaction rate of $10^{-2}\,sec^{-1}.$ How much time will it take for $20\, g$ of the reactant to reduce to $5\, g\,?$ ........ $\sec$

The volume (in $mL$ ) of $0.1\,M\,AgNO _3$ required for complete precipitation of chloride ions present in $20\,mL$ of $0.01\,M$ solution of $\left[ Cr \left( H _2 O \right)_5 Cl \right] Cl _2$ as silver chloride is $..........$.

${C_3}{H_8} + C{l_2}\xrightarrow{{{\text{Light}}}}{C_3}{H_7}Cl + HCl$

is an example of which of the following types of reactions

When acetic acid is dissolved in benzene its molecular mass