 # A) The wavelength and frequency of a light wave

## Presentation on theme: "A) The wavelength and frequency of a light wave"— Presentation transcript:

1. Which of the following list quantities that are directly proportional?
A) The wavelength and frequency of a light wave. B) The frequency of a light wave and the energy of a photon of the light. C) The wavelength of a light wave and the energy of a photon of the light. D) None of the above.

2. It takes about 650 kJ of energy to boil a cup of water
2. It takes about 650 kJ of energy to boil a cup of water. A photon of the electromagnetic radiation used in microwave ovens has an energy of about 1.62 X 10-24J. About how many microwave photons are needed to boil a cup of water? A) 4.0 X 1029J B) 9.7 X 1038J C) 6.02 X 1023J D) Need the wavelength to know.

3. Which of the following apply to the principal quantum number?
A) The higher the value, the greater the average distance of the electron from the nucleus. B) Integer values of 1 or greater are possible. C) Both A and B. D) None of the above.

4. Which of the following does not apply to the angular momentum quantum number?
A) All integer values are allowed. B) The value corresponds to the general shape of the orbital. C) The largest possible value depends on the value of the principle quantum number. D) Negative values are not allowed.

5. The possible values of the magnetic quantum number depend on the value of the angular momentum quantum number. A) True B) False

6. The possible values of the electron spin quantum number depend on the value of the magnetic quantum number. A) True B) False

7. Which of the following electron configurations does not correspond to a ground state atom?
A) 1s22s22p63s23p64s1 B) 1s22s22p63s23p63d1 C) 1s22s22p63s23p6 D) 1s22s22p6

8. Which of the following is not a possible electron configuration for a ground state or excited state atom? A) 1s22s22p63s23p63d1 B) 1s22p63s23p64s1 C) 1s21p62s22p63s23p64s1 D) 1s12s12p13s13p13d1

9. Irregularities from the expected electron configurations based on the Aufbau principle and Hund's rule occur for certain A) alkali metals. B) transition metals. C) halogens. D) all of the above.

10. Calculate the energy of a photon with a wavelength of 4.00x10-2 nm.
A) 2.65x10-35 J B) 2.65x10-44 J C) 4.97x10-24 J D) 4.97x10-15 J

11. Which of the following are all the values for quantum number ml when n = 4?
A) 0, 1, 2, 3 B) 1, 2, 3, 4 C) -3,-2,-1, 0, 1, 2, 3 D) -4,-3,-2,-1, 0, 1, 2, 3, 4 E) -1/2, +1/2

12. What is the maximum number of orbitals that can be contained in the 5th shell of an atom? (not including inner shells) A) 5 B) 25 C) 2 D) 8 E) 18

13. Which of the following represents the electron configuration of a silver atom?
A) [Ne] 3s2 3p2 B) [Kr] 5s2 4d9 C) [Ar] 5s1 4d10 D) [Kr] 5s1 4d10 E) [Ar] 5s2 4d9

14. Which of the following represents the electron configuration of the ferrous ion?
A) [Ar] 4s2 3d6 B) [Ar] 4s2 3d4 C) [Ar] 4s2 3d3 D) [Ar] 4s0 3d5 E) [Ar] 4s0 3d6

15. How many unpaired electrons does an atom of phosphorus have in the ground state?
B) 1 C) 2 D) 3 E) 4

16. Which of the following would have a larger ionic radius?
A) sulfide ion B) chloride ion C) potassium ion D) calcium ion

17. Metals tend to have lower first ionization energies than nonmetals.
A) True B) False

B) a high 2nd electron affinity.
18. If an element readily forms only one common ion and that ion has a charge of +2 , then the element must have A) first and second ionization energies that are considerably smaller than the third. B) a high 2nd electron affinity. C) a very high effective nuclear charge. D) a noble gas electron configuration.

C) the atom that is diagonal on the periodic table.
19. The electron configurations of stable ions of the representative elements are frequently the same as A) the neutral atom. B) a noble gas. C) the atom that is diagonal on the periodic table. D) the element above it in the same group.

20. Which of the following statements is true?
A) An ion is always smaller than the neutral atom. B) An anion is always smaller than the neutral atom. C) A cation is always smaller than the neutral atom. D) None of the above.

21. What is characteristic of a nonmetal?
A) low ionization energy, low electron affinity B) low ionization energy, high electron affinity C) high ionization energy, low electron affinity D) high ionization energy, high electron affinity