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Which set correctly lists the three main subatomic particles in an atom?
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4. Atoms and Elements
Subatomic Particles (Simplified)
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How many protons are in a neutral lithium atom?
A
3
B
6
C
7
D
10
Guida verificata passo dopo passo1
Recall that the number of protons in an atom is equal to its atomic number, which uniquely identifies the element.
Identify the element given in the problem: lithium. Lithium's atomic number is 3.
Understand that a neutral atom has an equal number of protons and electrons, but the number of protons does not change regardless of charge.
Therefore, the number of protons in a neutral lithium atom is the same as its atomic number, which is 3.
Conclude that the correct answer is 3 protons for a neutral lithium atom.
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