:: Home Page            
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
Categories >> Sciences >> Chemistry >> Inorganic Chemistry


 Organic Chemistry interview questions  Organic Chemistry Interview Questions (227)
 Inorganic Chemistry interview questions  Inorganic Chemistry Interview Questions (96)
 Analytical Chemistry interview questions  Analytical Chemistry Interview Questions (859)
 Physical Chemistry interview questions  Physical Chemistry Interview Questions (57)
 General Chemistry interview questions  General Chemistry Interview Questions (283)
 Chemistry AllOther interview questions  Chemistry AllOther Interview Questions (71)
why is the atomic radius of Mg2+ bigger than that of Na+?
 Question Submitted By :: Inorganic-Chemistry
I also faced this Question!!     Answer Posted By  
# 1
Its not. Both Na+ and Mg2+ have the same number of electrons
in a configuration emulating Neon, the difference is Mg has
more protons in the nucleus attracting the electrons inward
thereby making Mg have a SMALLER atomic radius.
Is This Answer Correct ?    39 Yes 4 No
# 2
atomic radius of Mg2+ is not bigger.
the one with larger positive nuclear charge will have
smaller radius.
so its radius is small.
Is This Answer Correct ?    15 Yes 1 No
# 3
as in answer # 4 was explained... the question is wrong.

They both have 10 electrons with the configuration of Neon:

2s2 2p6 and empty 3 s

but Na+ has only 1 proton whereas Mg+2 has two--

therefore Mg+2 has a smaller atomic radius then Na+

This can be verified in any decent highschool chemistry book--

By the way, I'm a real chemist! Whoever marked any answer in
this page (except for # 4) as correct is INCREDIBLY WRONG
Is This Answer Correct ?    9 Yes 2 No
# 4
in periods atomic radius decreases with in creasing atomic
Is This Answer Correct ?    1 Yes 22 No
# 5
as the mass no of Mg2+ is more than Na+ 
Is This Answer Correct ?    7 Yes 33 No

Other Inorganic Chemistry Interview Questions
  Question Asked @ Answers
Why is maximum pH14. Why does it range from 0-14 only? IISER 1
What are the products of the reaction AgNO3 + NaBH4   4
Why d-block elements are called outer while f-block elements are called inner transition elements?????????   1
water is made of?   3
How does ionic radius affect the solubility of a salt?   1
what are the types of chemical reactions?   5
Which is a homogenous mixture, NaOH solution or H2O?   2
what are transitional elements?   1
how rain water is the purest form of water   1
Give the IUPAC name. i) [Co(NH3)5SO4]Cl ii) [Co(NH3)5Cl] SO4 iii) [CoCl.CN.NO2.(NH3)3]   2
what is the oxidation number for KMnO4?   2
What is hybridyzation ? How can i find that which type hybridyzation in perticular compound like in CH4(hy is sp3).   1
For more Inorganic Chemistry Interview Questions Click Here 

Copyright Policy  |  Terms of Service  |  Articles  |  Site Map  |  RSS Site Map  |  Contact Us
Copyright 2013  All Rights Reserved.   ::