MY CART (5)
ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price:

There are no items in this cart.
Continue Shopping
                   

What role(s) dose the size as a physical property of the lanthanides and actinides plays to the effect of their complexation and magnetic property?

3 years ago

Share

Answers : (2)

                                        

The lanthanides and actinides are set apart even further from the transition metals. In most versions of the periodic table, lanthanum (57) is followed by hafnium (72) in the transition metals section of the chart. Similarly, actinium (89) is followed byrutherfordium(104). The "missing" metals—lanthanides and actinides respectively—are listed at the bottom of the chart. There are reasons for this, as well as for the names of these groups.

After the 6sorbital fills with the representative elemen barium(56), lanthanum does what a transition metal does—it begins filling the 5dorbital. But after lanthanum, something strange happens:cerium(58) quits filling 5d,and moves to fill the 4forbital. The filling of that orbital continues throughout the entirelanthenide series, all the way tolutetium(71). Thus lanthanides can be defined as those metals that fill the 4forbital; however, because lanthanum exhibits similar properties, it is usually included with the lanthanides.

A similar pattern occurs for the actinides. The 7sorbital fills withradium(88), after which actinium (89) begins filling the 6dorbital. Next comesthorium, first of the actinides, which begins the filling of the 5forbital. This is completed with element 103,lawrencium. Actinides can thus be defined as those metals that fill the 5forbital; but again, because actinium exhibits similar properties, it is usually included with the actinides

Thank You
Ruchi
Askiitians faculty
one year ago
                                        

he lanthanides and actinides are set apart even further from the transition metals. In most versions of the periodic table, lanthanum (57) is followed by hafnium (72) in the transition metals section of the chart. Similarly, actinium (89) is followed byrutherfordium(104). The "missing" metals—lanthanides and actinides respectively—are listed at the bottom of the chart. There are reasons for this, as well as for the names of these groups.

After the 6sorbital fills with the representative elemen barium(56), lanthanum does what a transition metal does—it begins filling the 5dorbital. But after lanthanum, something strange happens:cerium(58) quits filling 5d,and moves to fill the 4forbital. The filling of that orbital continues throughout the entirelanthenide series, all the way tolutetium(71). Thus lanthanides can be defined as those metals that fill the 4forbital; however, because lanthanum exhibits similar properties, it is usually included with the lanthanides.

A similar pattern occurs for the actinides. The 7sorbital fills withradium(88), after which actinium (89) begins filling the 6dorbital. Next comesthorium, first of the actinides, which begins the filling of the 5forbital. This is completed with element 103,lawrencium.Actinides can thus be defined as those metals that fill the 5forbital; but again, because actinium exhibits similar properties, it is usually included with the actinides

Thank You
Ruchi
Askiitians faculty
one year ago

Post Your Answer

More Questions On Inorganic Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
what is the faraday’s equivalent of 9.8g of k2cr2o7 ?
 
 
here 6 is n- factor of k2cr207 (moles of electrons needed to reduce 1 mol. of k2cr2o7)
 
Abhishek Singh 2 months ago
 
moles of k2cr2o7 is= 9.8/294=1/30 moles eqvalents = 1/30*6=0.2
 
Abhishek Singh 2 months ago
Question is attached... {ALTS-10 Q57}
 
 
ANS(1) In (CrO4)2- We first find the charge on Cr. Let the charge of Cr be x. x-4(2)= -2 x-8= -2 x=+6 From the cofiguration of Cr, if we remove 6 electrons to find configuration of Cr+6 The...
  img
Sunil Kumar FP 3 months ago
How to find wich oxide is nuteral?
 
 
By viewing the periodic table,one can predict the nature of oxides.Acidic,basic,neutral oxides show following trends- In general, the electropositive character of the oxide's central...
  img
Aarti Gupta 4 months ago
 
Oxides are those chemical compounds in which one or more oxygenatoms combined with another element for e.g. Li2O.These are of different types like acidic,basic,amphoteric and neutral.Neutral...
  img
Aarti Gupta 4 months ago
 
Ok , you are correct is there any fixed part in the periodic table , where the element combines with oxygen and form nuteral oxide. From my guess the most probably from your answer above the...
 
Vineeth 4 months ago
How many types of packing is their in unit cell?? Which are they??? Explain each
 
 
Close packing The principles involved can be understood by considering the most efficient way of packing together equal-sized spheres and stacking close-packed atomic planes in three...
  img
Harishwar 5 months ago
How could we found electron affinity of any compound ?
 
 
by the valance electrons in outermost shell and the electrostatic force between the electrons and nucleus
 
Kapil 3 months ago
 
by the valance electrons in outermost shell and the electrostatic force between the electrons and nucleus
 
Kapil 3 months ago
 
by the valance electrons in outermost shell and the electrostatic force between the electrons and nucleus
 
Kapil 3 months ago
View all Questions »