L Luke S New member Apr 18, 2010 #1 a. 12 neutrons and 28 protons c. 12 protons and 28 neutrons b. 12 neutrons and 16 protons d. 12 protons and 16 neutrons
a. 12 neutrons and 28 protons c. 12 protons and 28 neutrons b. 12 neutrons and 16 protons d. 12 protons and 16 neutrons
