New Worksheet - Science - Protons, Electrons, and Neutrons (II)

Directions
List how many protons, electrons, and neutrons each atom has.
Note: the number listed is the mass number.

1. Pu – 244
protons: ________
electrons: ________
neutrons: ________

2. Md – 258
protons: ________
electrons: ________
neutrons: ________

3. Am – 243
protons: ________
electrons: ________
neutrons: ________

4. Pa – 231
protons: ________
electrons: ________
neutrons: ________

5. Sb – 122
protons: ________
electrons: ________
neutrons: ________

6. P – 31
protons: ________
electrons: ________
neutrons: ________

7. Ca – 41
protons: ________
electrons: ________
neutrons: ________

8. Dt – 163
protons: ________
electrons: ________
neutrons: ________

9. Ce – 140
protons: ________
electrons: ________
neutrons: ________

10. Co – 59
protons: ________
electrons: ________
neutrons: ________


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