Question

Write short notes.
e.Position of isotopes in the
Mendeleev's and the modern
periodic table. ​

Answer 1

Answer:

it's your answer

Explanation:

1.Different atoms of the same element having same atomic number but different atomic mass number are called isotopes

2. isotopes were discover rate long time after Mendeleev put forth the periodic table

3. Hence, there was no definite place for isotopes

4.in 1913 A.D., Henry Moseley revealed that atomic number is a more fundamental property of an element that its atomic mass