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1. How many significant figures: 480
1 2 3 4 5

2. When an element has a different number of neutrons, it is called a/an...
Anomaly Differentiated Mutated Isotope None of these

3. How many significant figures: 1.003080
Answer:

4. Which of these has 23 protons?
Scandium Titanium Vanadium Chromium None of these

5. How many neutrons in carbon-13?
13 0 1 7 6

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