. Every pion consists of a quark and an antiquark and is also therefore a meson. Pions are classified as the lightest mesons and, extra typically, the lightest hadrons. They can be unstable, With all the billed pions ফেইসবুক পেইজ ভিজিট ও লাইক দিন। কনটেন্টটি শেয়ার ক�