☢️9️⃣7️⃣

#element 97 #berkelium #atomic number 97 #actinide

Bk9️⃣7️⃣

#bk #berkelium #element 97 #atomic number 97 #chemical symbol

9️⃣7️⃣⚛️

#atomic number 97 #element 97 #berkelium #number 97