Respuesta :
Answer:
Radium (Ra)
Metal
Alkaline Earth Metal
Protons & Electrons: 88
Neutrons: 138
Explanation:
Answer:
magnesium, Mg, metal, alkaline earth metals, its neutral atom has 12 protons and 12 neutrons and 12 electrons
Answer:
Radium (Ra)
Metal
Alkaline Earth Metal
Protons & Electrons: 88
Neutrons: 138
Explanation:
Answer:
magnesium, Mg, metal, alkaline earth metals, its neutral atom has 12 protons and 12 neutrons and 12 electrons