CBSE Class 10: Electrovalent Bonding of Metals Videos | Bonding in metals

• What is the difference between octet and duplet?
• why solid form of ionic compounds do not conduct electricity wherease solid form of metals conducts it.
• What is the total number of ions produced by one molecule of Na₂O and MgBr₂ in their aqueous solution?
• Identify the positive and negative ions in the following compounds:(i) MgCl₂ (ii) LiCl (iii) Na₂O (iv) Fe₂O₃
• Why ionic reactions are quite fast? Give an example of an ionic reaction.
• Why ionic compounds are soluble in polar solvents and insoluble in non-polar solvents?
• Explain the formation of CaF_2.
• Discuss electrical conductivity of ionic compounds taking example of sodium chloride.
• Give electron dot structure of following ionic compounds.        1)   Al₂O₃       2)   Na₂S       3)   CaS
• Give the formula of ionic compound formed by following pair of elements:       (i)     Al, F       (ii)     Na, P       (iii)     K, S       (iv)    Ca, O       (v)     Li, Cl       (vi)    Mg, Br

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