Lithium has an atomic number of 3. How many protons does it have?
Understand the Problem
The question is asking for the number of protons in lithium, which corresponds to its atomic number. Since the atomic number of lithium is 3, it has 3 protons.
Answer
3 protons
Lithium has 3 protons.
Answer for screen readers
Lithium has 3 protons.
More Information
The atomic number of an element indicates the number of protons in its nucleus. For lithium, the atomic number is 3, which means it has 3 protons.
Tips
A common mistake is confusing the atomic number with the mass number. The mass number includes both protons and neutrons, while the atomic number is only the number of protons.
Sources
- Lithium has an atomic number of 3 and a mass number of 7 - Naxlex - naxlex.com
- How many protons are in lithium atom? - Socratic - socratic.org
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