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Ques 103 -107( in hindi) (CHEMICAL PERIODICITY)
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This lesson contains question from chemical periodicity.

Manpreet Singh
QUALIFIED NET (CHEMICAL SCIENCES) ..... PRESENTLY WORKING AS AN ASSISTANT PROFESSOR . WANT TO BRING WORLD PEACE THROUGH EDUCATION....

U
Unacademy user
slide problem solution= just click on slide and hold it before video start and take screenshots of second slide after this open screenshot and listen audio video and watch it from screen shot
Why vanderwaal radius of lithum lesser than Bromine? Li : 182 pm , Br : 185 pm
Manpreet Singh
a year ago
br vanderwaal is 195
Sarita Yadav
a year ago
182×10*-12is greater than 195×10*-12😊
sir in case of O- if it takes one more electron then it attains noble gas config.
  1. ()d) Na t



  2. Be


  3. CM rd


  4. HAe ollowing tI Li cp


  5. 2, 1, 18, 32,32 /8 At8 17


  6. sould be lond n


  7. IA 732A LiBe 60 0 He 3A 4A 5A 6A 7A>0 F Ne 271-122| >0-141|-328| >0 B C N O NaMgASiP SCl Ar 43134-72-200 -349 >0 53 >0 KCa 48 30 119 -78-195 -325 >0 In SnSbTe 30 .107 .103|-190|-295| Rb Sr IXe 475


  8. He 2372.3 13 14 5 1617 CN OF Ne 1681.0 2080. 800.6 1086.5 14023 1313.9 Al SiP S CI 775 786.5 1011.8 999.6 1251.2 Ar 1520.6 Ga Ge As Se Br Kr 5788 762.2 9445 941.0 1139.9 1350.8 In Sn Sb Te I Xe 558.3 708.6 830.6 869.3 1008.4 1170.3 TI Pb Bi Po At Rn 037.1 5894 715.6 703.0 812.1