Multiple Choice
An atom has 23 protons and 29 neutrons. Which is the correct chemical symbol for this atom?
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2. Atoms & Elements
The Atom
Multiple Choice
Which of the following is the number of protons in a neutral atom of terbium (Tb)?
A
81
B
65
C
69
D
74
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Verified step by step guidance1
Recall that the number of protons in a neutral atom is equal to its atomic number.
Identify the element terbium (Tb) on the periodic table.
Find the atomic number of terbium, which is the number of protons in its nucleus.
Note that the atomic number is unique for each element and determines its identity.
Conclude that the number of protons in a neutral atom of terbium is equal to its atomic number.
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