mattgolombisky8358 mattgolombisky8358 13-12-2022 Chemistry contestada Standard Number Element Atomic Atomic Numbe of of of Name Mass Notation Protons Neutrons Electrons 80 6 Nitrogen 4 84 36 Kr 27 U 92 19 12 C E 27 7 70 30 26 Kr 12 14 14 11 11 15 Ca 29 14 47 9 Co Al 70 12 30 14 45