Multiple Choice
Which of the following best describes the role of electrons within an atom?
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- 1. Intro to General Chemistry3h 48m
- Classification of Matter18m
- Physical & Chemical Changes19m
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- Main Group Elements: Bonding Types4m
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- 24. Transition Metals and Coordination Compounds3h 16m
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- Complex Ions5m
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- Classification of Ligands11m
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- Crystal Field Theory Summary8m
- Magnetic Properties of Complex Ions9m
- Strong-Field vs Weak-Field Ligands6m
- 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
Which of the following is the number of protons found in a neutral atom of phosphorus (element symbol P)?
A
31
B
14
C
15
D
16
Verified step by step guidance1
Recall that the number of protons in a neutral atom is equal to the atomic number of the element.
Identify the element given: phosphorus, which has the symbol P.
Look up the atomic number of phosphorus on the periodic table; this number represents the number of protons.
Understand that the atomic number of phosphorus is 15, meaning a neutral phosphorus atom has 15 protons.
Note that the other numbers given (31, 14, 16) correspond to other properties such as mass number or number of neutrons, but do not represent the number of protons.
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