Download Chemistry 1 Concept 5 “Electrons in Atoms” Study Guide

Chemistry 1 Concept 4 “Electrons in Atoms” Study Guide
Name: ______________________________
Block: _________
1. Give the elements that have the following electron configurations:
1s22s22p63s23p4 _______________
1s22s22p63s23p64s23d104p3 ____________
2. Specific wavelengths of light seen through a prism that are made when high voltage
current is passed through a tube of hydrogen gas at low pressure is _________________
3. The energy of a photon is related to its ______________
4. Give the number of orbitals for each sublevel: s _____, p ______, d ______, f ______
5. What is the wavelength of microwaves of 4.0 x 109 Hz frequency? _______________
6. An electron for which n = 4 has more _______ than an electron for which n = 2.
7. What is the frequency of a photon with an energy of 1.75 x 10 -19 J________________
8. The number of sublevels within each energy level of an atom is equal to the value of
the ________________________________________________________
9. What is the frequency of infrared light of 1.0 x 10 -4 J___________________
10. The main energy levels of an atom are indicated by the ________________________
11. Describe the Schrödinger wave equation ___________________________________
12. Which model of the atom explains the orbitals of electrons as waves? ____________
13. What is the relationship between frequency and wavelength? ___________________
14. Describe the orbital shapes of each orbital: s________________________________,
p___________________________, d _______________________, f ________________
15. Why do both copper and chromium break the pattern in the order of filling the 3d
and 4s orbitals? __________________________________________________________
16. What is the Aufbau principle? ___________________________________________
and in what order are the obitals filled? _______________________________________
17. The quantum number that indicates the position of an orbital about the three axes in
space is the ___________________________________
18. The spin quantum number indicates that the number of possible spin states for an
electron in an orbital is __________
19. The angular momentum quantum number indicates the ________________________
20. What is the energy of a photon whose frequency is 5.0 x 1020 Hz? ______________
21. What state are electrons in that have the lowest possible energy ________________
22. According to the particle model of light, certain kinds of light cannot eject electrons
form metals because ___________________________________________________
23. Describe the Heisenberg uncertainty principle a) _____________________________
b) _________________________________ c) __________________________________
24. A quantum of electromagnetic energy is called a _____________________________
25. A line spectrum is produced when an electron moves from one energy level to _____
26. Bohr’s theory helped explain why ________________________________________
27. Because excited H atoms always produce the same line-emission spectrum, scientists
concluded that H released photons of _________________________________________
28. What does the wave model of light explain? ________________________________
29. Draw a wave and label the wavelength, describe the frequency.
30. What is Hund’s rule? __________________________________________________
31. What is the de Broglie theory? __________________________________________
32. The Pauli Exclusion Principle states ______________________________________
33. The spin quantum number of an electron can be thought of as describing _________