Chemistry · Concept of atom, molecule, element and compound
What is the ratio of the number of neutrons present in potassium and magnesium a
What is the ratio of the number of neutrons present in potassium and magnesium atoms with mass number 39 and 24 respectively?
- A. 19: 12 2
- B. 5: 3
- C. 5: 6 \)
- D. 4: 3
Step-by-step solution
Potassium has atomic number 19. With mass number 39, neutrons = 39 - 19 = 20. Magnesium has atomic number 12. With mass number 24, neutrons = 24 - 12 = 12. The ratio of neutrons is 20:12, which simplifies to 5:3.
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