Question

which constituents are present in an atom ?

Answer 1

atoms contain nuclei having proton and neutron called as neucleons
and around nucleus electrons are moving with an angular momentum nh/2pie

Answer 2

Any atoms made out of something other than electrons, protons, nuetrons, theirconstituents are knows as exotic matter. Originally Answered:Which constituents are present in an atom?Atoms consist of the core nucleus and the orbiting electrons. The nucleus contains protons and neutrons