Number 15 on the periodic table July 8, 2019 16 32 64 128 15 on the periodic table Atomic number 15 on the periodic table Element number 15 on the periodic table Phosphorus is atomic number 15 on the periodic table. phosphorus-33 contains Which element has atomic number 15 on the periodic table Group number 15 periodic table Числа от 1 до 10 на английском