Chemistry Target 2.2
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Construct electron configurations, noble gas configurations, and orbital diagrams that demonstrate electron arrangement in atoms and identify the presence and charge of ions.
A.
Which of the following represents a correct ground-state electron configuration for a silicon atom?
- [math]1s^2 2s^2 2p^6 3s^2 3p^6 4s^2[/math]
- [math]1s^2 2s^2 2p^4 3s^2 3p^4[/math]
- [math]1s^2 2s^2 2p^6 3s^2 3p^2[/math]
B.
Which of the following statements correctly describes the behavior of elements that are NOT in Group 18?
- They will become atoms in the excited state.
- They will become atoms in the ground state.
- They will lose, gain, or share electrons to form a configuration that matches that of a noble gas.
- They will lose or gain electrons, only.
C.
When sulfur becomes an ion, which noble gas' electron configuration does it match up with?
- argon
- helium
- neon
- xenon
D.
Which represents a correct electron configuration for a chlorine atom?
- [Ar][math]4s^2 3d^10 4p^4[/math]
- [Ne][math]3s^2 3p^6[/math]
- [Ne][math]3s^2 3p^5[/math]
- [Ne][math]3s^2 3p^4[/math]
E.
When describing the electrons in an orbital, we use arrows pointing upward and downward (↑ and ↓) to indicate what property?
- electron configuration
- electron spin
- electron charge
- electron orbitals