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?
- 1s22s22p63s23p64s2
- 1s22s22p43s23p4
- 1s22s22p63s23p2
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]4s23d104p4
- [Ne]3s23p6
- [Ne]3s23p5
- [Ne]3s23p4
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