Isotope Worksheet



Isotope Worksheet

Write the most common isotope in hyphen notation for the following elements. The most common isotope can be found by rounding the atomic mass found on the periodic table of elements to the nearest whole number.

1. Sodium: ____________ 2. Aluminum: ____________

3. Arsenic: ____________ 4. Radon: ____________

5. Carbon: ____________ 6. Cesium: ____________

Write the most common isotope in nuclear symbol notation for the following elements.

7. Uranium: ____________ 8. Plutonium: ____________

9. Flourine: ____________ 10. Zinc: ____________

11. Iodine: ____________ 12. Hydrogen: ____________

Calculate the number of protons and neutrons in the following isotopes

13. H-3: protons: ____ neutrons: ______

14. C-14: protons: ____ neutrons: ______

15. Oxygen-16: protons: ____ neutrons: ______

16. Osmium-190: protons: ____ neutrons: ______

17. Lead-270: protons: ____ neutrons: ______

18. C-12: protons: ____ neutrons: ______

19. [pic] protons: ____ neutrons: ______

20. [pic] protons: ____ neutrons: ______

21. [pic] protons: ____ neutrons: ______

22. [pic] protons: ____ neutrons: ______

23. [pic] protons: ____ neutrons: ______

24. [pic] protons: ____ neutrons: ______

25. [pic] protons: ____ neutrons: ______

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