Multiple Choice
Which element has 16 protons in its nucleus?
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- 1. Intro to General Chemistry3h 46m
- Classification of Matter18m
- Physical & Chemical Changes19m
- Chemical Properties7m
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- The Atom9m
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- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
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- 24. Transition Metals and Coordination Compounds3h 19m
- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
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- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
- Coordination Numbers & Geometry9m
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- Isomerism in Coordination Complexes17m
- Orientations of D Orbitals4m
- Intro to Crystal Field Theory10m
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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
Periodic Table: Element Symbols
Multiple Choice
Which of the following is the atomic number of gold (Au)?
A
79
B
47
C
82
D
29
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Verified step by step guidance1
Understand that the atomic number of an element is the number of protons in the nucleus of an atom of that element.
Recall that each element on the periodic table has a unique atomic number that identifies it.
Look up the element gold (Au) on the periodic table to find its atomic number.
Note that the atomic number of gold (Au) is 79, which means gold atoms have 79 protons.
Compare the given options (47, 82, 29) with the atomic number of gold and identify that none of these match gold's atomic number, which is 79.
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