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Which of the following elements has a mass number of 40 and atomic number of 20?
Potassium
Calcium
Sodium
Neon
Calcium
Practice and solve "Which of the following elements has a mass number of 40 and atomic number of 20?..." for General Science - Previous Year Paper 2026. The correct answer is Option B: Calcium. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "Which of the following elements has a mass number of 40 and atomic number of 20?..." for General Science - Previous Year Paper 2026. The correct answer is Option B: Calcium. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.