Similarities between Lithium and Magnesium:

5 years ago

Share

Answers : (1)

                                        












The similarity between Lithium and Magnesium is particularly striking and arises because of their similar sizes: atomic radii, Li = 152 pm, Mg = 160 pm: ionic radii:  Li+ = 76 pm, Mg2+ = 72 pm. The main points of


similarity are:


 


(i)                  Both lithium and magnesium are harder lighter than other elements in the respective groups.


(ii)                Lithium and magnesium react slowly with water. Their oxides and hydroxides are much less soluble and their hydroxides decompose on heating.


(iii)               The oxides, Li2O and MgO do not combine with excess oxygen to give any superoxide.


(iv)              The carbonates of lithium and magnetism decompose easily on heating to form the oxides and CO2  .


(v)                Both LiCl and MgCl2 are soluble in ethanol.


(vi)              Both LiCl and MgCl2 are deliquescent and crystallize from aqueous solution as hydrates, LiCl.2H2O and MgCl2.8H2O.

5 years ago

Post Your Answer

More Questions On Physical Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
how many farads are required for reduction of one mole C 6 H 5 NO 2 into C 6 H 5 NH 2
 
 
C6H5NO2 + 6H (in the presence of Sn and HCl)——————→ C6H5NH2 + 2H2O for conversion of 1 mole of nitrpbenzene 6 mole of electron are required charge on...
  img
Sunil Kumar FP one month ago
In which of the following bonds are polar but molecule is non-polar? Give explanation. (1) 1,4-dimethoxy benzene (2) Sulphur hexa fluoride (3) Carbon tetra chloride (4) Carbon dioxide
 
 
ccl4-tetrahedral shape each polar bond cancels each others effect sf6-octahedral complete symmetry co2-linear ,polar bond and non polar molecule 1,4dimethoxy benzene1,4-Dimethoxybenzene has...
  img
Sunil Kumar FP one month ago
If avogadro’s no. is taken as any no. other than 6.023×10 23 , will there be any change in the molecular mass of any molecule (for instance O 2 ) ??
 
 
Molecular mass of an substance (element or compound) is the average relative mass of a molecule of the substance as compared with mass of an atom of carbon(C-12) taken as 12u.It tell us the...
  img
Aarti Gupta yesterday
did average energy depends upon the intensity of the incident light?
 
 
no it doesn''t,only threshold frequency and KE
 
Spandan Bandyopadhyaya one year ago
 
Yes, it is directly propotional.
 
Prajwal kr one year ago
 
No,it does not depend upon intensity of incident light.it always depends upon the threshold frequency and kinetic energy.
 
BAYANA SAGAR one year ago
what is mean by a indicator in titration?
 
 
Titration is the process of determining the volumes of reagents(or solutions),required for the just completion of a reaction.The point at which the reaction is just completed is called the...
  img
Aarti Gupta 4 months ago
 
While performing a titration, we slowly add one solution of a known concentration to another known volume but without knowing concentration. This process of adding titrant to another...
  img
Vasantha Kumari 4 months ago
 
Indicator is a substance that changes the color of a solution in order to detect the presence of certain ions in it. It can also be used to indicate the presence of completion of a reaction...
  img
Ruchi Shaw 4 months ago
pls provide me information on diff types of backbonding eg. ppi-ppi,ppi-dpi,dpi,ppi,,,,,etc
 
 
Pπ- Pπ bonding is called back bonding In BF3molecule the 2P orbitals of each F atom are fully filled, while one of 2Porbital of the B atom is vacant. The two 2P orbitals involved in...
  img
Sunil Kumar FP 13 days ago
View all Questions »