Multiple Choice
How many protons are present in an atom of radon (Rn)?
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- 1. Intro to General Chemistry3h 48m
- Classification of Matter18m
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- Complex Ions5m
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- Crystal Field Theory Summary8m
- Magnetic Properties of Complex Ions9m
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- Magnetic Properties of Complex Ions: Octahedral Complexes11m
2. Atoms & Elements
The Atom
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many protons are present in an atom of antimony (Sb)?
A
123
B
73
C
51
D
47
Verified step by step guidance1
Identify the element in question, which is antimony (Sb).
Recall that the number of protons in an atom is equal to the atomic number of the element.
Look up the atomic number of antimony (Sb) on the periodic table.
Note that the atomic number corresponds to the number of protons in the nucleus of the atom.
Conclude that the number of protons in an atom of antimony is equal to its atomic number.
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