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![[Post New]](/templates/default/images/icon_minipost_new.gif) 28 Mar 2008 23:54:22 IST
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i have a doubt about d-block elements, we have to study howmuch means wht we hav to study
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28 Mar 2008 23:57:33 IST
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21 - Sc - Scandium
Atomic Weight: 44.9559 g/mol
Oxidation States: 3
Boiling Point: 3109 K
Melting Point: 1814 K
Density: 2.99 g/cm³
Electron Configuration: [Ar]3d1,4s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.36
Heat of Vaporization: 304.80 kJ/mol
Heat of Fusion: 16.11 kJ/mol
Electrical Conductivity: 1.5 10^6omg-¹cm-¹
Thermal Conductivity: 15.8 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity: 0.568 Jg-¹K-¹ (at 300 K)
First Ionization Potential: 6.54
Atomic Volume: 15.0 cm³/mol
Atomic Radius: 1.62 Å
Covalent Radius: 1.44 Å
Synthetic: No
22 - Ti - Titanium
Atomic Weight: 47.88 g/mol
Oxidation States: 4, 3
Boiling Point: 3560 K
Melting Point: 1935 K
Density: 4.54 g/cm³
Electron Configuration: [Ar]3d2,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1.54
Heat of Vaporization: 425.2 kJ/mol
Heat of Fusion: 18.6 kJ/mol
Electrical Conductivity: 2.6 10^6omg-¹cm-¹
Thermal Conductivity: 21.9 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity: 0.523 Jg-¹K-¹ (at 300 K)
First Ionization Potential: 6.82
Atomic Volume: 10.60 cm³/mol
Atomic Radius: 1.45 Å
Covalent Radius: 1.32 Å
Synthetic: No
23 - V - Vanadium
Atomic Weight: 50.9415 g/mol
Oxidation States: 5, 4,3,2
Boiling Point: 3650 K
Melting Point: 2136 K
Density: 6.11 g/cm³
Electron Configuration: [Ar]3d3,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, body centered
Electronegativity: 1.63
Heat of Vaporization: 446.7 kJ/mol
Heat of Fusion: 22.8 kJ/mol
Electrical Conductivity: 4.0 10^6omg-¹cm-¹
Thermal Conductivity: 30.7 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity: 0.489 Jg-¹K-¹ (at 300 K)
First Ionization Potential: 6.74
Atomic Volume: 8.35 cm³/mol
Atomic Radius: 1.34 Å
Covalent Radius: 1.22 Å
Synthetic: No
24 - Cr - Chromium
Atomic Weight: 51.996 g/mol
Oxidation States: 3, 6,2
Boiling Point: 2945 K
Melting Point: 2130 K
Density: 7.19 g/cm³
Electron Configuration: [Ar]3d5,4s1
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 1.66
Heat of Vaporization: 339.5 kJ/mol
Heat of Fusion: 20 kJ/mol
Electrical Conductivity: 7.9 10^6omg-¹cm-¹
Thermal Conductivity: 93.7 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity: 0.449 Jg-¹K-¹ (at 300 K)
First Ionization Potential: 6.766
Atomic Volume: 7.23 cm³/mol
Atomic Radius: 1.30 Å
Covalent Radius: 1.18 Å
Synthetic: No
25 - Mn - Manganese
Atomic Weight: 54.9380 g/mol
Oxidation States: 4,2, 7,6,3
Boiling Point: 2235 K
Melting Point: 1518 K
Density: 7.44 g/cm³
Electron Configuration: [Ar]3d5,4s2
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 1.55
Heat of Vaporization: 219.74 kJ/mol
Heat of Fusion: 14.64 kJ/mol
Electrical Conductivity: 0.5 10^6omg-¹cm-¹
Thermal Conductivity: 7.82 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity: 0.48 Jg-¹K-¹ (at 300 K)
First Ionization Potential: 7.435
Atomic Volume: 7.39 cm³/mol
Atomic Radius: 1.35 Å
Covalent Radius: 1.17 Å
Synthetic: No
26 - Fe - Iron
Atomic Weight: 55.847 g/mol
Oxidation States: 3, 2
Boiling Point: 3023 K
Melting Point: 1808 K
Density: 7.874 g/cm³
Electron Configuration: [Ar]3d6,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, body centered
Electronegativity: 1.83
Heat of Vaporization: 349.5 kJ/mol
Heat of Fusion: 13.8 kJ/mol
Electrical Conductivity: 11.2 10^6omg-¹cm-¹
Thermal Conductivity: 80.2 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity: 0.449 Jg-¹K-¹ (at 300 K)
First Ionization Potential: 7.870
Atomic Volume: 7.10 cm³/mol
Atomic Radius: 1.26 Å
Covalent Radius: 1.16 Å
Synthetic: No
27 - Co - Cobalt
Atomic Weight: 58.9332 g/mol
Oxidation States: 2, 3
Boiling Point: 3143 K
Melting Point: 1768 K
Density: 8.90 g/cm³
Electron Configuration: [Ar]3d7,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1.88
Heat of Vaporization: 373.3 kJ/mol
Heat of Fusion: 16.19 kJ/mol
Electrical Conductivity: 17.9 10^6omg-¹cm-¹
Thermal Conductivity: 100 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity: 0.421 Jg-¹K-¹ (at 300 K)
First Ionization Potential: 7.86
Atomic Volume: 6.70 cm³/mol
Atomic Radius: 1.25 Å
Covalent Radius: 1.16 Å
Synthetic: No
28 - Ni - Nickel
Atomic Weight: 58.6934 g/mol
Oxidation States: 2, 3
Boiling Point: 3005 K
Melting Point: 1726 K
Density: 8.90 g/cm³
Electron Configuration: [Ar]3d8,4s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 1.91
Heat of Vaporization: 377.5 kJ/mol
Heat of Fusion: 17.2 kJ/mol
Electrical Conductivity: 14.6 10^6omg-¹cm-¹
Thermal Conductivity: 90.7 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity: 0.444 Jg-¹K-¹ (at 300 K)
First Ionization Potential: 7.635
Atomic Volume: 6.60 cm³/mol
Atomic Radius: 1.24 Å
Covalent Radius: 1.15 Å
Synthetic: No
29 - Cu - Copper
Atomic Weight: 63.546 g/mol
Oxidation States: 2, 1
Boiling Point: 2840 K
Melting Point: 1356.6 K
Density: 8.96 g/cm³
Electron Configuration: [Ar]3d10,4s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 1.90
Heat of Vaporization: 300.5 kJ/mol
Heat of Fusion: 13.14 kJ/mol
Electrical Conductivity: 60.7 10^6omg-¹cm-¹
Thermal Conductivity: 401 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity: 0.385 Jg-¹K-¹ (at 300 K)
First Ionization Potential: 7.726
Atomic Volume: 7.10 cm³/mol
Atomic Radius: 1.28 Å
Covalent Radius: 1.17 Å
Synthetic: No
30 - Zn - Zinc
Atomic Weight: 65.39 g/mol
Oxidation States: 2
Boiling Point: 1180 K
Melting Point: 682.73 K
Density: 7.13 g/cm³
Electron Configuration: [Ar]3d10,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1.65
Heat of Vaporization: 115.30 kJ/mol
Heat of Fusion: 7.38 kJ/mol
Electrical Conductivity: 16.9 10^6omg-¹cm-¹
Thermal Conductivity: 116 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity: 0.388 Jg-¹K-¹ (at 300 K)
First Ionization Potential: 9.394
Atomic Volume: 9.20 cm³/mol
Atomic Radius: 1.38 Å
Covalent Radius: 1.25 Å
Synthetic: No
if i study these is it o.k. or any thing else plz
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29 Mar 2008 23:10:42 IST
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how ever this might be okay but u have to learn d magnetic properties,metallurgical extractions, colour variable O.S ETC i think continous study &practice is d only alternate fr inorganic chemistry hope this might help u annaya
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30 Mar 2008 01:03:37 IST
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HEY CHELLI THANX YAAAAAARRRRRR
THIS IS FOR U AND ANSEWR IT QUICKLY.
http://www.goiit.com/posts/list/community-shelf-the-most-most-most-most-most-most-most-most-49426.htm
THIS IS MY ARTICLE
GIVE OPINION. IAM SORRY BCZ I HAD NOT STUDIED . MY B.P.AT NOW IS 90/70. PLZZ EXCUSE ME. AND I WILL SAME WITH U BY THE WILL OF MINE.
DONT FEEL THT THE BROTHER IS NOT WITH U I WILL BE WITH U ACCORING TO TIME TABLE U STUDIED . IF U FEEL ANY THING HARADER DONT FEEL WE THINK THT WE HAVE TO STUDY THE CONCEPTS ONLY SO DONT IF U DONT UNDER STAND ANY THING THEN GO TO THE IPE TEXT BOOKS , NCERT AND STUDY THE FOR IIT
I ASKED U THT WHICH BOOKS WE CAN FOLLOW PLZZ KINDLY MENTION THTAND I ASKED U FOR U R E.MAIL ADDRESS BCZ I HAVE SOME DOCUMENTS WHICH ARE DOWNLOADED I THINKL U UNDER STOOD IT AND PLZZ MENTION THT WHEN U WILL BE IN THIS SITE . IF U THINKS THERE IS NO PROBLEM WITHME BCZ OF GIVING U R PHONE NUMBER THEN GIVE IT. O.K. IT IS A REQUEST BCZ IF I HAVE ANY DOUBTS THEN I ABLE TO CLEAR IT AND IF U HAVE ANY DOUBTS THEN ALSO U R ABLE TO CONTACT WITH ME I THINK THERE IS NO PROBLEM TO U TO CONSULT ME BCZ U R MY SISTER AND ALSO STUDYING IN A COACHING INSTITUTE SO THERE ARE NO PROBLEMS TO U ON THINKING OF MINE DONT THINK ANY THING TOUGHER
SODIGAA UNDI KADA ITS FOR FREE NESS .O.K ACCORING TO OUR PLAN WE HAVE TO COMPLEATE THE ENTAIRE SYLLEBUS BEFORE THE DATE 6-04-07. OK.
FOR CHEMISTYRY THIS DATEB IS 31 ST BCZ IT IS THE MOST SCORING IN IIT JEE.
FOR MATHS THE DATE IS 3-04-08 .
FOR PHYSICS DATE IS 06-04-08.
WE HAVE TO COMPLEATE THE ENTAIRE SYLLEBUS BEFORE 07-04-08. ANY THING WILL HAppen SISTER ISU AND BROTHER SIVA ARE COMPLEATING THE EANTAIRE SAYLLEBUS OF IIT-JEE BEFORE 07-04-08. O.K
WILL U AGREE WITH ME ARE NOT ?
I ASKED U FOR U R CONTACT IF U FEEL THT THERE IS NO PROBLEM THEN GIVE OR IF U NOT INTERESTED THEN FEEL THT THE BROTHER OF MINE WAS DISOPPOINTED O.K. PLZZ INFORM THT WHT TIME WE WILL DISCUSS HE NOT IN PHONE YARRR IN THIS SITE O.K. BYEEEEEEE
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30 Mar 2008 23:09:52 IST
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im not bored bcoz u give valuable suggestions i will b available frm 11:00--1:00 if u wod like to discuss d quesns u can post or nudge me .i accept fr ur article i accept fr it how ever v must finish it on 6th of april . maintain ur health fit im following ur time table dont worry v can mannage it
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31 Mar 2008 00:45:32 IST
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O.K. WE WILL FOLOW OUR TIME TABLE U HAVE NOT GIVEN ANSEWRD MY QUESTION I.E. WHICH BOOKS WECAN FOLLOW OR U FOLLOWING. HE ANSWER THIS, O.K.
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31 Mar 2008 01:06:58 IST
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PLZ C QUE NO 1 ASKED BY U I'VE ANSD UR QUENS
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