Lattice structure of group I elements is

Write the Lewis structure of the given elements in the table. Also consult the periodic table and fill in the group number of the element.

If the valency shell electronic structure for an element is ns^(2) np^(5) , this element will belong to the group of

If the valence shell electronic structure for an element is ns^(2) np^(5) , this element will belong to the group of

The valence shell electronic structure of an element is ns^2 np^2 . The element will belong to the group of

State two properties of group I elements.

Draw a lattice structure of an intrinsic semi-conductor.

Explain the following properties of group 16 elements : (i) Electronegativity

(a) What is meant by (i) a group and (ii) a period in a periodic table? (b) How many periods and groups are there in the long form periodic table? (c) Give two examples each of (i) group 1 elements (ii) group 17 elements (iii) group 18 elements.