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0 votes0 answer535 views4 Years Ago
Account For The Following: Elements Of Group 17 Are Monovalent
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0 votes0 answer353 views4 Years Ago
Write The Atomic Numbers Of Two Elements X And Y Having Electronic Configuration 2,8,2 And 2,8,6 Respectively.
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What Is Meant By Periodicity In Properties Of Elements With Reference To Periodic Table?
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Assertion : Electronegativity Of Flourine Is Reason : The Electronegativity Of The Elements Increases
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Assertion : Noble Gases Are Also Called Inert Gases. Reason : Noble Gases Have A Complete Octet
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Assertion : Elements Of Group 16 Are Monovalent. Reason : Elements Of Group 16 Have Seven Electrons
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Assertion : The Elements Of The Same Group Reason : The Elements Of The Same Group Have The Different Number
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Assertion : Be, Mg And Ca Can Be Classified Reason : Atomic Mass Of Mg Is Approximately
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Which Of The Following Property Increases Down The Group?
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0 votes0 answer277 views4 Years Ago
What Type Of Oxide Would Eka-aluminium Form?
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Which Of The Following Statements Is Incorrect For Atomic Size?
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(i) Lithium, Sodium And Potassium Are All Metals That React With Water (ii) Helium Is An Unreactive Gas And Neon Is A Gas
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0 votes0 answer363 views4 Years Ago
Name Two Elements You Would Expect To Show Chemical Reactions Similar To Magnesium.
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0 votes0 answer153 views4 Years Ago
How Could The Modern Periodic Table Remove Various Anomalies Of Mendeleevs Periodic Table?
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0 votes0 answer190 views4 Years Ago
Why Do You Think Noble Gases Are Placed In A Separate Group?
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Use Mendeleevs Periodic Table To Predict The Formulae For
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0 votes0 answer220 views4 Years Ago
What Were The Limitations Of Newlands Law Of Octaves?
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0 votes0 answer262 views4 Years Ago
What Were The Limitations Of Dobereiners Classification?
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0 votes0 answer283 views4 Years Ago
Did Dobereiners Triads Also Exist In The Columns Of Newlands Octaves? Compare And Find Out
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22 votes1 answer255 views4 Years Ago
Which Of The Following Element Is Not The Member Of Second Period?
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20 votes1 answer209 views4 Years Ago
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