Is mass intrinsic property of a material?
Mass is an intrinsic property of any any physical object. Intrinsic property refers to the thing than an object has within it which is influenced by other things.
Write the quark composition of proton-neutron.
Proton: Proton consists of three quarks uud ie, two u quarks & one d quark.Neutron: The combination of three quarks (udd) gives a neutron particle.