Textbook Question
Sometimes clothes cling together when removed from a dryer. What kinds of charges are on the clothes?
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4. Atoms and Elements
The Atom (Simplified)
Multiple Choice
How many protons are in a neutral atom of bismuth (Bi)?
A
83
B
209
C
56
D
126
Verified step by step guidance1
Identify the element in question, which is bismuth (Bi). Each element is defined by its atomic number, which represents the number of protons in its nucleus.
Recall that the atomic number is unique to each element and can be found on the periodic table. For bismuth, locate its position on the periodic table to find its atomic number.
Understand that in a neutral atom, the number of protons equals the number of electrons, but the question specifically asks for protons, so focus on the atomic number.
Use the atomic number of bismuth as the number of protons in the atom. This is a direct relationship: number of protons = atomic number.
Conclude that the number of protons in a neutral atom of bismuth is the atomic number you found on the periodic table.
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