Transition elements show high melting points. Why?
Transition elements show high melting points. Why?
In transition elements, the $(n-1) d$-electrons are involved in interatomic metallic bonding in addition to $n s$ electrons and thus, transition elements show high melting points.
Similar Questions
Calculate the number of unpaired electrons in the following gaseous ions: $Mn ^{3+}, Cr ^{3+}, V ^{3+}$ and $T i^{3+} .$ Which one of these is the most stable in aqueous solution?
Calculate the number of unpaired electrons in the following gaseous ions: $Mn ^{3+}, Cr ^{3+}, V ^{3+}$ and $T i^{3+} .$ Which one of these is the most stable in aqueous solution?
Which of the following is correct
Which of the following is correct
Magnetic moment $2.83\, BM$ is given by which of the following ions ?
(At. nos. $Ti = 22,\,Cr = 24,$ $ Mn = 25,\,Ni = 28$)
Magnetic moment $2.83\, BM$ is given by which of the following ions ?
(At. nos. $Ti = 22,\,Cr = 24,$ $ Mn = 25,\,Ni = 28$)
- [NEET 2014]
In a titration experiment, $10 \,mL$ of an $FeCl _{2}$ solution consumed $25\, mL$ of a standard $K _{2} Cr _{2} O _{7}$ solution to reach the equivalent point. The standard $K _{2} Cr _{2} O _{7}$ solution is prepared by dissolving $1.225\, g$ of $K _{2} Cr _{2} O _{7}$ in $250 \,mL$ water. The concentration of the $FeCl _{2}$ solution is closest to $.....\, N$
[Given : molecular weight of $K _{2} Cr _{2} O _{7}=294 \,g\, mol ^{-1}$ ]
[Given : molecular weight of $K _{2} Cr _{2} O _{7}=294 \,g\, mol ^{-1}$ ]
- [KVPY 2019]
$F{e^{2 + }}$ shows
$F{e^{2 + }}$ shows