Unit 4 Test Chemistry I Fall 2002 Form A

1. What is the maximum number of electrons that can occupy any one orbital?
(A) 1 (B) 2 (C) 3 (D) 4

2. Which energy level has no f sublevel?
(A) 5 (B) 6 (C) 3 (D) 4

3. The total number of orbitals in a d sublevel is
(A) 1 (B) 5 (C) 7 (D) 3

4. The greatest absorption of energy occurs as an electron moves from
(A) 1s to 2s (B) 4d to 3s (C) 3p to 3s (D) 4s to 3p

5. In an atom, the s sublevel has
(A) 1 orbital (B) 3 orbitals (C) 5 orbitals (D) 7 orbitals

6. What is the maximum number of sublevels in the 3rd energy level?
(A) 3 (B) 4 (C) 18 (D) 32

7. Energy is released when an electron changes from a sublevel of
(A) 1s to 2p (B) 2s to 3s (C) 3s to 2s (D) 3p to 5s

8. What is the atomic number of the atom whose electron configuration is 1s2 2s2 2p1?
(A) 5 (B) 8 (C) 3 (D) 2

9. The electron configuration for aluminum is
(A) 1s2 2s2 2p3 3s2 3p3 3d1 (B) 1s2 2s2 2p6 3s2 2d1
(C) 1s2 2s2 2p6 3s2 3p1 (D) 1s2 2s2 2p9

10. In a neon light, when is light given off?
(A) when protons return to the nucleus (B) when electrons jump to higher energy levels
(C) when electrons collide (D) when electrons return to their ground state

11. The correct notation for the barium atom is
(A) 1s2 2s2 2p6 3s2 3p6 3d10 4s2 (B) [Xe] 6s2
(C) 1s2 2s2 2p6 3s2 3p6 4s1 (D) 1s2 2s2 2p6 3s2 3p6 4s2

12. An atom that has an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d5 is classified as
(A) an alkali metal (B) an alkaline earth metal
(C) a transition metal (D) a noble gas

13. The electron configuration for the carbon atom is
(A) 1s2 2s2 2p2 (B) [He] 2s4 (C) [Ne] 2s2 2p2 (D) 1s2 2p4

14. If three electrons fill an empty p sublevel, how will the electrons be distributed in the three orbitals?
(A) one in each orbital
(B) two electrons in one orbital, one in another orbital
(C) three electrons in one orbital, none in the others

15. If 10 units of energy moves an electron to a higher energy level, how much energy is released when the
electron returns to its normal energy level?
(A) 20 units (B) 10 units (C) 5 units (D) 0 units

16. The maximum number of electrons that can occupy a d sublevel is
(A) 5 (B) 6 (C) 7 (D) 10

17. Which has the shortest wavelength?
(A) ultraviolet (B) visible light (C) x-rays (D) infrared

18. Which energy level holds a maximum of 18 electrons?
(A) 2 (B) 3 (C) 4 (D) 5

19. Which one of these sublevels has the highest energy?
(A) 4f (B) 5f (C) 6p (D) 7s

20. Which of these sublevels does NOT exist?
(A) 2d (B) 3s (C) 3d (D) 4f

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