Question

Would you place the isotope 17Cl^37 after the isotope 17Cl^35 because of it's greater atomic mass? Give reason for your answer?

Answer 1

Explanation:

This is not true for long form of modern periodic table as base of modern periodic table is atomic number .

Mendeleev's periodic table (base- atomic mass) has a limitation for arrangement of isotopes .That's why it was discarded..