Subatomic Particles Worksheet
Subatomic Particles Worksheet Name:__________________
Put the correct answer in the space provided (you will need a Periodic Table): (3 pts each)
1. What is the atomic number of oxygen (O)? _____
2. How many protons does an aluminum (Al) atom have? _____
3. How many electrons does a calcium (Ca) atom have? _____
For #4 - #6, consider a potassium (K) atom with a mass number of 41:
4. How many protons does this atom have? _____
5. How many electrons does this atom have? _____
6. How many neutrons does this atom have? _____
For #7 - #9, consider the atom with A = 95 and Z = 42:
7. How many neutrons does this atom have? _____
8. How many protons does this atom have? _____
9. What is the atomic symbol for this element? _____
For #10 - #12, consider the atom with 35 protons, 35 electrons, and 45 neutrons:
10. What is the atomic symbol for this element? _____
11. What is the atomic number of this atom? _____
12. What is the mass number of this atom? _____
For #13 - #15, consider a copper (Cu) atom with a mass number of 64:
13. What is the Z value for this atom? _____
14. What is the A value for this atom? _____
15. How many neutrons does this atom have? _____
For #16 - #18, consider the following symbol ( 14C
16. How many protons does this atom have? _____
17. How many electrons does this atom have? _____
18. How many neutrons does this atom have? _____
For #19 - #21, consider the iron (Fe) ion with an overall +3 charge and A = 56:
19. How many protons does this ion have? _____
20. How many electrons does this ion have? _____
21. How many neutrons does this ion have? _____
For #22 - #24, consider the iodine (I) ion with an overall –1 charge and A = 126:
22. How many protons does this ion have? _____
23. How many electrons does this ion have? _____
24. How many neutrons does this ion have? _____
For #25 - #26, consider an ion with 50 protons, 46 electrons, and 70 neutrons:
25. What is the charge on this ion? _____
26. What is the mass number of this ion? _____
For #26 - #27, consider an ion with 25 protons, 20 electrons, and 30 neutrons:
27. What is the charge on this ion? _____
28. What is the atomic symbol of this ion? _____
For #28 - #30, consider the following symbol ( 238U+3
29. How many protons does this ion have? _____
30. How many electrons does this ion have? _____
31. How many neutrons does this ion have? _____
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