Question

state one observation which shows that atom is not divisible​

Answer 1

Explanation:

One observation which shows that atom is not divisible is that in modern atomic theory it states that atoms are divisible into sub-atomic particles like protons, electrons and neutrons

Answer 2

Answer:

One observation which shows that atom is not divisible is that in modern atomic theory it states that atoms are divisible into sub-atomic particles like protons, electrons and neutrons.