Chemistry Hard by arjunsah98120 More quizzes in Science and Education What is the atomic number of iron? 25 27 26 24 28 What is the atomic mass of aluminium? 26.57u 26.75u 26.983u 26.982u What is the atomic number of aluminium? 13 15 14 12 What is the atomic number of magnesium? 13 11 14 12 14 What is the mass of magnesium? 24.096 24.378 24.970 24.305 What is the mass of sulfur? 23.32 32.06 32.32 320.6 What is the mass of scandium? 43.96u 44.956u 46u 43.07u What is the number of scandium 23 23 20 21 22 What is the mass of potassium? 40.2 43 39.0983 39.2982 What is the mass of argon? 39.948amu 40.82amu 38.75amu 42amu Your result βΊοΈ Good luck next time π Not bad! ππ Good job! π₯³ Perfect! ... Try more quizzes in HICHAPP