Multiple Choice
How many valence electrons does gallium (Ga) have?
Table of contents
- 1. Intro to General Chemistry3h 48m
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- 23. Chemistry of the Nonmetals2h 39m
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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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- Paramagnetism and Diamagnetism10m
- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
- Coordination Numbers & Geometry9m
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- 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
- 1. The Chemical World10m
10. Periodic Properties of the Elements
Valence Electrons of Elements
Multiple Choice
How many valence electrons does a neutral atom of chlorine possess?
A
5
B
8
C
7
D
1
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Verified step by step guidance1
Identify the element in question, which is chlorine (Cl).
Recall that valence electrons are the electrons in the outermost shell of an atom that participate in chemical bonding.
Determine the electron configuration of chlorine. Chlorine has an atomic number of 17, so it has 17 electrons.
Write the electron configuration for chlorine: \$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{5}$.
Count the electrons in the outermost shell (the third shell): \$3s^{2} 3p^{5}$, which totals 7 valence electrons.
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