Multiple Choice
Which of the following is the smallest possible piece of a pure substance that retains its chemical properties?
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- 1. Intro to General Chemistry3h 48m
- Classification of Matter18m
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- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
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- Noble Gas Compounds3m
- 24. Transition Metals and Coordination Compounds3h 16m
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- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- 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
How many protons are present in a neutral atom of barium (Ba)?
A
56
B
137
C
34
D
82
Verified step by step guidance1
Identify the element in question, which is barium (Ba).
Recall that the number of protons in a neutral atom is equal to the atomic number of the element.
Look up the atomic number of barium on the periodic table; this number represents the number of protons.
Understand that the atomic number is unique to each element and defines the element's identity.
Conclude that the number of protons in a neutral atom of barium is equal to its atomic number.
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