Question

Two elements 'A’ and ’B’ belong to the 3rd period of Modern periodic table and are in group 2 and 13 respectively. Compare their following characteristics in tabular form : (a) Number of electrons in their atoms (b) Size of their atoms (c) Their tendencies to lose electrons (d) The formula of their oxides (e) Their metallic character (f) The formula of their chlorides

Answer 1

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Answer 2

a). The numbers of electrons in A is 12 and in B is 13 .

b). B is more bigger in size than A .

c). A has more tendency to lose electron than B .

d). The formula of oxide of A is AO and of B is B$_{2}$O$_{3}$ .

e). A has more metallic character than B .

f). The formula of chloride of A is ACl$_{2}$ and of B is BCl$_{3}$ .