What change occurs in the following properties while moving from left to right in any period of the periodic table?...

On moving from left to right in a period in the periodic table, the size of the atom.

Explain giving justification the trends in the following properties of elements, on moving , from left to right in a period, in the Modern periodic Table. (a) Variation of valency. (b) Change of atomic radius . (c) Metallic to non-metallic character. (d) Electronegative character. (e) nature of oxides.

(a) How does the size of atoms (atomic size) generally vary in ging from left to right in a period of the periodic table? Why does it vary this way? (b) What happens to the metallic character of the elements as we move from left to right in a period of the periodic table?

How does the valency of elements change on moving from left to right in the third period of the periodic table?

How would the tendency to gain electrons change on moving from left to right in a period of th periodic table?

How do the atomic radii of elements change as we go from left to right in a period of the periodic table?

Atomic radius increases while going from left to right within a period.