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Which property of an atom determines the identity of an element?
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- 1. Intro to General Chemistry4h 5m
- Classification of Matter18m
- Physical & Chemical Changes19m
- Chemical Properties7m
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- The Atom10m
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- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
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- The Electron Configuration Review16m
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- Production of Hydrogen8m
- Group 1A and 2A Reactions7m
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- Nitrogen Family Reactions12m
- Oxides, Peroxides, and Superoxides12m
- Oxide Reactions4m
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- Noble Gas Compounds3m
- 24. Transition Metals and Coordination Compounds3h 19m
- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
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- Paramagnetism and Diamagnetism10m
- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
- Coordination Numbers & Geometry9m
- Naming Coordination Compounds22m
- Writing Formulas of Coordination Compounds8m
- Isomerism in Coordination Complexes17m
- Orientations of D Orbitals4m
- Intro to Crystal Field Theory10m
- Crystal Field Theory: Octahedral Complexes5m
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- Crystal Field Theory: Square Planar Complexes4m
- 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
Scelta multipla
Which of the following is the number of protons in a silicon (Si) atom?
A
16
B
12
C
14
D
28
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Guida verificata passo dopo passo1
Recall that the number of protons in an atom is equal to its atomic number, which is unique for each element.
Identify the element in question, which is silicon (Si).
Look up the atomic number of silicon on the periodic table; this number represents the number of protons in a silicon atom.
Note that the atomic number of silicon is 14, meaning a silicon atom has 14 protons.
Understand that the other numbers given (16, 12, 28) correspond to other properties or elements but do not represent the number of protons in silicon.
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