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Basic Chemistry Practice Test: Electronic Structure of Atoms
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Basic Chemistry Practice Test: Electronic Structure of Atoms
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25 Questions

1. The wavelength of radio waves can be longer than a football field.
2. Which one of the following represents an acceptable set of quantum numbers for an electron in an atom? (arranged as n, l, ml , and ms )
3. The deBroglie wavelength of a particle is given by __________.
4. The wavelength of an electron whose velocity is 1.7 × 104 m/s and whose mass is 9.1 × 10-28 g is __________ m.
5. Which one of the following is an incorrect orbital notation?
6. Of the following, __________ radiation has the shortest wavelength.
7. The de Broglie wavelength of a bullet (7.5g) traveling at 700 m/s is __________ m.
8. An electron in a Bohr hydrogen atom has an energy of -1.362 × 10-19 J. The value of n for this electron is __________.
9. The energy (J) required for an electronic transition in a Bohr hydrogen atom from n = 2 to n = 3 is __________ J.
10. The largest principal quantum number in the ground state electron configuration of barium is __________.
11. In a hydrogen atom, an electron in a __________ orbital can absorb a photon, but cannot emit a photon.
12. The valence shell of the element X contains 2 electrons in a 5s subshell. Below that shell, element X has a partially filled 4d subshell. What type of element is X?
13. Electromagnetic radiation with a wavelength of 640 nm appears as orange light to the human eye. The energy of one photon of this light is __________ J.
14. How many p-orbitals are occupied in a Ne atom __________?
15. The uncertainty principle states that __________.
16. Which one of the following configurations depicts an excited oxygen atom?
17. The principal quantum number of the first d subshell is __________.
18. Which one of the following is an incorrect subshell notation?
19. Which one of the following is correct?
20. The electron configuration of a ground-state Ag atom is __________.
21. What is the correct ground-state electron configuration for molybdenum __________?
22. The frequency of electromagnetic radiation required to promote an electron from n = 2 to n = 4 in a Bohr hydrogen atom is __________ Hz.
23. There are __________ orbitals in the second shell.
24. Which of the subshells below do not exist due to the constraints upon the azimuthal quantum number?
25. The __________ quantum number defines the shape of an orbital.

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