Explain the general periodic trend of first ionization enthalpy along a period and group in the periodic table.

How many periods in the modern periodic table?

What is meant by groups and periods in the periodic table?

Why does the first ionization enthalpy increase as we go from to across a given period of the Periodic Table?

Write the atomic number of the element in the third period and group 17 of the period table.

Discuss the position of hydrogen in the periodic table.

The shortest period in the modern periodic table…......

Justify the position of hydrogen in the periodic table

The first ionization enthalpy of magnesium is higher than that of sodium. Explain.

What is the basic theme of organization in the periodic table?

Ionization enthalpy is an important periodic property. a) What is the unit in which it is expressed? b) What are the factors influencing ionization enthalpy? c) How ionisation enthalpy varies in the periodic table?