Multiple Choice
Which of the following is the atomic number of chlorine?
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- 1. Intro to General Chemistry3h 57m
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- 23. Chemistry of the Nonmetals2h 39m
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- 24. Transition Metals and Coordination Compounds3h 19m
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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 element on the periodic table has 79 protons?
A
Mercury (Hg)
B
Platinum (Pt)
C
Silver (Ag)
D
Gold (Au)
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Verified step by step guidance1
Recall that the number of protons in an atom is called its atomic number, which uniquely identifies each element on the periodic table.
Look up the atomic numbers of the given elements: Mercury (Hg), Platinum (Pt), Silver (Ag), and Gold (Au).
Mercury (Hg) has an atomic number of 80, Platinum (Pt) has 78, Silver (Ag) has 47, and Gold (Au) has 79.
Since the element with 79 protons corresponds to the atomic number 79, identify which element matches this number.
Conclude that the element with 79 protons is Gold (Au), as it has the atomic number 79.
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