The group 14 elements have four electronsin the outermost shell. `SiCl_4`, can be easily hydrolyzed by water while `CCl_4` cannot be hydrolyzed.

The group 14 elements have four electronsin the outermost shell. How are fullerenes prepared?

The group 14 elements have four electronsin the outermost shell. Distinguish between silicones and Silicates.

Give reasons for the following: C Cl_4 cannot be hydrolyzed but SiCl_4 can hydrolysed.

Carbon and silicon belong to the same group and have many similarities. C Cl_4 cannot be hydrolysed but SiCl_4 can be. Why?

The outermost electronic configuration of an element is 3s^2 3p^4 a) Find the atomic number of this element. b) Write down the group in which this element belongs to? c) Write down the outermost subshell elctronic configuration of the inert gas which belongs to the same period of the given element.

How many electrons can be accommodate in the sub -shell having n=4 and l=2?

Which of the following is/are wrong statements? a) Alkali metals, alkaline earth metals and helium are s-block elements. b) Pnicogens and halogens are p-block elements. c) The first member of the lanthanide series is lanthanum. d) The lightest liquid metal is gallium. e) Group 17 contains no metals. f) Elements whose atoms have two outermost shells incomplete are called transition elements

How can you explain the behaviour of BCl_3 and CCl_4 towards water?

The noble gases have closed-shell electronic configuration and are monoatomic gases under normal conditions. The low boiling points of the lighter noble gases are due to the weak dispersion forces between the atoms and the absence of other interatomic interactions, The direct reaction of xenon with fluorine leads to a series of compounds with oxidation numbers +2, 4 and +6, XeF_4 reacts violently with water to give XeO_3 . The compouds of xenon exhibit rich stereochemistry and their geometries can be deduced considering the total number of electron pairs in the valence shell. Argon is used in arc welding because of its