Question

How does modern periodic table different from mandleev's periodic table?

Answer 1

hey...

Answer:

DIFFERENCE:

MENDELEEV periodic table:

1. Here, hydrogen was not given a specific place.
2. This periodic table was based on mass number.
3. It has eight vertical columns called groups and 12 horizondal rows called periods.
4. seperation of metals and non metals cannot be distinguished from each other.
5. Iso topes are not given place

MORDEN PERODIC TABLE

Hydrogen was given a correct place

1. This periodic table was based on atomic number.
2. it contain 7 horizontal rows called periods and 18 vertical columns called groups
3. Separation of metals and non metals can be distinguished from each other.

4. Iso topes was given its places

hope it's help you....