Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
EasyWrite the formulae of chlorides of Eka-silicon and Eka-aluminium,the elements predicted by Mendeleev.
(A) Mendeleev predicted the existence of several elements that were not discovered at that time.
He named the element below silicon as Eka-silicon,which was later identified as Germanium $(Ge)$. Since silicon is in group $14$,its chloride is $SiCl_4$. Therefore,the formula for the chloride of Eka-silicon is $GeCl_4$.
He named the element below aluminium as Eka-aluminium,which was later identified as Gallium $(Ga)$. Since aluminium is in group $13$,its chloride is $AlCl_3$. Therefore,the formula for the chloride of Eka-aluminium is $GaCl_3$.
Thus,the formulae are $GeCl_4$ and $GaCl_3$.
He named the element below silicon as Eka-silicon,which was later identified as Germanium $(Ge)$. Since silicon is in group $14$,its chloride is $SiCl_4$. Therefore,the formula for the chloride of Eka-silicon is $GeCl_4$.
He named the element below aluminium as Eka-aluminium,which was later identified as Gallium $(Ga)$. Since aluminium is in group $13$,its chloride is $AlCl_3$. Therefore,the formula for the chloride of Eka-aluminium is $GaCl_3$.
Thus,the formulae are $GeCl_4$ and $GaCl_3$.
Explore More
Similar Questions
The elements $Be$,$Mg$,and $Ca$,each having two electrons in their outermost shells,are in periods $2$,$3$,and $4$ respectively of the modern periodic table. Answer the following questions,giving justification in each case:
$(i)$ Write the group to which these elements belong.
$(ii)$ Name the least reactive element.
$(iii)$ Name the element having the largest atomic radius.
$(i)$ Write the group to which these elements belong.
$(ii)$ Name the least reactive element.
$(iii)$ Name the element having the largest atomic radius.
Medium
View SolutionAn element $X$ (atomic number $17$) reacts with an element $Y$ (atomic number $20$) to form a divalent halide.
$(a)$ Where in the periodic table are elements $X$ and $Y$ placed?
$(b)$ Classify $X$ and $Y$ as metal$(s)$,non-metal$(s)$,or metalloid$(s)$.
$(a)$ Where in the periodic table are elements $X$ and $Y$ placed?
$(b)$ Classify $X$ and $Y$ as metal$(s)$,non-metal$(s)$,or metalloid$(s)$.
Medium
View SolutionThree elements $X$,$Y$,and $Z$ have atomic numbers $7$,$8$,and $9$ respectively.
$(a)$ State their positions (Group number and period number both) in the Modern Periodic Table.
$(b)$ Arrange these elements in the decreasing order of their atomic radii.
$(c)$ Write the formula of the compound formed when $X$ combines with $Z$.
$(a)$ State their positions (Group number and period number both) in the Modern Periodic Table.
$(b)$ Arrange these elements in the decreasing order of their atomic radii.
$(c)$ Write the formula of the compound formed when $X$ combines with $Z$.
Medium
View Solution"Hydrogen occupies a unique position in the Modern Periodic Table". Justify the statement.
Easy
View Solution$(a)$ Amongst the following elements,identify the ones that would form anions:
$K, O, Na, F, Ca, Cl, Mg$
$(b)$ Write the electronic configuration of the anions identified above.
$K, O, Na, F, Ca, Cl, Mg$
$(b)$ Write the electronic configuration of the anions identified above.
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo