Question

tell me the important questions of chapter the periodic classification

Answer 1

the table is important and electron dot structure

Answer 2

1) What do you mean by Dobernier Law Of Triads? Give any example.

2)Define Modern Periodic Law.

3) Write the postulates of Mendeleev Periodic Table.

4) Which elements did Mendeleev correct(atomic weights) in periodic table?

5) What do you mean by periods and groups?

6) Define Ionization Energy. What are the units?