Draw orbit structure diagram of:
(a) sodium chloride (NaCl), (b) calcium oxide (CaO). [Atomic numbers Na = 11, Ca = 20, Cl = 17,O = 8).

Explain with the help of [i] an ionic equation [ii] electron dot structural diagram - the formation of the following [a] Sodium chloride [b] Calcium oxide [c] Magnesium chloride. [at.nos. Na = 11, Cl = 17, Ca = 20, O = 8, Mg = 12].

Explain with the help of (i) an ionic equation (ii) electron dot structural diagram (iii) atomic or orbital structural diagram for the formation of the following: (a) Sodium chloride (b) Calcium oxide (c) Magnesium chloride.

Draw the electron dot diagram for the compounds given below. Represent the electrons by (.) and (x) in the diagram : [Atomic No. Ca = 20, O = 8, Cl = 17, H = 1] Calcium oxide

Draw the electron dot diagram for the compounds given below. Represent the electrons by (.) and (x) in the diagram : [Atomic No. Ca = 20, O = 8, Cl = 17, H = 1] Water molecule

Draw the electron dot diagram for the compounds given below. Represent the electrons by (.) and (x) in the diagram : [Atomic No. Ca = 20, O = 8, Cl = 17, H = 1] Chlorine molecule

Draw the electron dot structure of : [i] Nitrogen molecule [N = 7] , [ii] Sodium chloride [Na = 11, Cl = 17] , [iii] Ammonium ion [N = 7, H = 1 ]

Among the triatomic molecules/ions BeCl_(2),N_(3)^(-),N_(2)O, NO_(2)^(+), O_(3), SCl_(2), lCl_(2)^(-),l_(3)^(-) and XeF_(2) , the total number of linear molecules (s)/ion(s) where the hybridisation of the central atom does not have contribution from the d - orbitals (s) is [atomic number of S=16, Cl=17, I=53 and Xe=54 ]

With reference to formation of compounds from atoms by electron transfer - electrovalency, state the basic steps in the conversion of sodium & chlorine atoms to sodium & chloride ions leading to the formation of the compound - sodium chloride. [electronic configuration of: Na = 2,8,1 & Cl = 2,8,7]

Which one of the following sets of ions represents the collection of isoelectronic species? (Atomic numbers : F = 9, CI = 17, Na = 11, Mg = 12,Al = 13, K = 19, Ca = 20, Sc =21)

Explain with the help of - electron dot diagrams - the formation of the following molecules, stating the valency of each element involved. [a] Hydrogen [b] Chlorine [c] Oxygen [d] Nitrogen [e] Water [f] Methane [ g] Carbon tetrachloride [h] Ammonia [i] Carbon dioxide [at.nos. H = 1, C = 6, N = 7, O = 8, Cl = 17].