Question

how can you justify that protons are constituents of all atoms?​

Answer 1

Answer:

protons are constituents of all atoms as they are the only species which have certain mass.

hope it helps...

Answer 2

Answer:

Without them it won't be possible for an atom to get formed as there would be no forces of attraction to hold it together.

We can justify it as protons are almost have the mass of Atom along with neutrons as electons weight is negligible