Pretest - Electron Configuration U4
9 Questions
| Attempts: 345
The following questions are on electrons and electron configuration, it may be useful to review the associated material.
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Questions and Answers
- 1.Which atomic sub-level will follow the 5d?
- A.
6s
- B.
6p
- C.
5f
- D.
4f
- 2.What neutral atom is represented by the following configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 ?
- A.
Iron
- B.
Zinc
- C.
Aluminum
- D.
Copper
- 3.What neutral atom is represented by the following configuration: 1s2,2s2,2p6,3s2,3p6,4s2,3d10,4p4?
- A.
Silicon
- B.
Selenium
- C.
Silver
- D.
Sulfur
- 4.What neutral atom is represented by the following configuration: 1s2 2s2 2p6 3s2 3p1 ?
- A.
Aluminum
- B.
Sodium
- C.
Boron
- D.
Silicon
- 5.What neutral atom is represented by the following configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5 ?
- A.
Iodine
- B.
Bromine
- C.
Zinc
- D.
Lead
- 6.Which of the following noble gas configurations is correct for potassium?
- A.
(Kr)4s1
- B.
(Kr)3s1
- C.
(Ar)4s1
- D.
(Ar)3s1
- 7.Which of the following noble gas configurations is correct for chlorine?
- A.
(Ar)2s2 2p5
- B.
(Ne)2s2 2p5
- C.
(Ar)3s2 3p5
- D.
(Ne)3s2 3p5
- 8.Which of the following noble gas configurations is correct for iron?
- A.
(Kr)5s2 4d3
- B.
(Kr)5s2 4d5
- C.
(Ar)4s2 4d6
- D.
(Ar)5s2 4d3
- 9.How many electrons are in the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 ?
- A.
18
- B.
30
- C.
15
- D.
6
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