Lithium and Magnesium belong to 1st and 2nd groups in the periodic table. They resemble each other in many respects.(i) Name such relationship.(ii) Give any one similarity between Li and Mg.

Li and Mg belonging to first and second group in periodic table respectively resemble each other in many respects. a) Name the relationship. b) B can only form [BF_4]^- ion while Al can form [AlF_6]^3- though both B and Al belong to group 13. Justify.

Lithium and magnesium belong to first and second group respectively in the periodic table. They resemble each other in many respects not only in their metallic character. Name such relationship.

Lithium and magnesium belong to first and second group respectively in the periodic table. They resemble each other in many respects not only in their metallic character. Illustrate the similarities of Li and Mg in their properties.

Lithium of first group resembles Mg of second group. List any two similarities between Li and Mg.

Lithium is group 1 element. It shows some similarities with group 2 element magnesium. Give other example for this relationship.

Lithium is group 1 element. It shows some similarities with group 2 element magnesium. Write the name of the relationship.

Lithium is group 1 element. It shows some similarities with group 2 element magnesium. Explain this relationship.

The physical and chemical properties of elements are periodic functions of their atomic numbers. a) The atomic number of an element 'X' is 19. Write the group number, period and block to which 'X' belong in the periodic table. b) Name the element with i) highest electronegativity and ii) highest electron gain enthalpy

In rectangle with one side 1cm shorter than the other , take the length of the shorter side as x cm. i) Taking their perimeters as p(x) cm, write the relation between p(x) and x as an equation. ii) Taking their areas as a(x) sq.cm, write the relation between a(x) and x as an equation. iii) Calculate p(1),p(2),p(3),p(4),p(5). Do you see any pattern? iv) Calculate a(1),a(2),a(3),a(4),a(5).Do you see any pattern?