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Mass Defect Calculator
Mass defect and binding energy of a nucleus.
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Mass defect
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Mass defect and binding energy of a nucleus.
Mass Defect Estimator
Enter your numbers below for an instant estimate.
0
π‘ Tip: Defect = Z mp + N mn – M
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Mass Quick Guide
Typical values for reference.
| Protons | Neutrons | Nuclear mass (u) | Mass defect |
|---|---|---|---|
| 2 | 2 | 4.001506 | 0.03 u |
| 6 | 6 | 11.996709 | 0.10 u |
| 1 | 1 | 2.013553 | 0.00 u |
| 26 | 30 | 55.920685 | 0.53 u |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Mass Defect Calculator FAQ
Answers to common questions about this calculator.
It uses the formula shown with your inputs. Real conditions vary, so treat it as a guide.
Defect = Z mp + N mn – M
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.
Yes. Replace each input with your own figures and the result updates instantly.