Why does the first ionisation energy increase as we go from left to right along a given period of periodic table?

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

How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?

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

Electronegativity increases while going from left to right within a period.

(a) Define the following terms: (i) Valency, (ii) Atomic size (b) How do the valency and the atomic size of the element vary while going from left to right along a period in the modern periodic table?

How does the metallic character of elements change on going from left to right in a period of the periodic table ?

(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?

The period number of an element is equal to the from left to right in a 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 does the atomic radius change as we go: (i) from left to right in a period (ii) down a group in the periodic table