Honors Chemistry Quiz Chapter 8: Periodic Properties Name: ______Period: ____ Date: ______This quiz is worth 44 points. Only those quizzes completed in black ink will be graded. Good luck!

1) No two electrons can have the same four quantum numbers is known as the A) Pauli exclusion principle B) Hund's rule C) Aufbau principle D) Heisenberg uncertainty principle E) None of the above.

2) When filling degenerate orbitals, electrons fill them singly first, with parallel spins is known as A) Pauli exclusion principle B) Hund's rule C) Aufbau principle D) Heisenberg uncertainty principle E) All the above.

3) Choose the valence orbital diagram that represents the ground state of Zn. A)

B)

C)

D)

E)

1 4) Give the set of four quantum numbers that could represent the last electron added (using the Aufbau principle) to the Cl atom. 1 A) n = 3, l = 1, ml = 0, ms = - 2 1 B) n = 3, l = 0, ml = 1, ms = - 2 1 C) n = 3, l = 2, ml =1 , ms = + 2 1 D) n = 2, l = 1, ml = 1, ms = - 2 1 E) n = 3, l =2 , ml = 1, ms = - 2

5) Which of the following statements is TRUE? A) An orbital that penetrates into the region occupied by core electrons is less shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy. B) An orbital that penetrates into the region occupied by core electrons is more shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy. C) It is possible for two electrons in the same atom to have identical values for all four quantum numbers. D) Two electrons in the same orbital can have the same spin. E) None of the above are true.

6) The complete electron configuration of gallium, element 31, is ______. A) 1s22s22p103s21s22s22p103s23p104s23d3 B) 1s22s22p63s23p63d104s24p1 C) 1s42s42p63s43p64s43d3 D) 1s42s42p103s43p9 E) 1s42s42p83s43p84s3

7) Give the ground state electron configuration for I. A) [Kr]5s24d105p6 B) [Kr]5s24d105p5 C) [Kr]4d105p6 D) [Kr]5s25p6 E) [Kr]5s25d105p6

2 8) Give the number of valence electrons for Cd. A) 8 B) 10 C) 12 D) 2 E) 6

9) How many electrons are in the outermost shell of the Ga3+ ion in its ground state? A) 2 B) 3 C) 6 D) 18 E) None of the above.

10) Which of the following have the same number of valence electrons? A) Rb, Sb, I B) Ga, Sn, Bi C) As, Sb, Bi D) Ar, Kr, Br E) All the above.

11) How many of the following elements have 2 unpaired electrons in the ground state?

C O Ti Si A) 1 B) 2 C) 3 D) 4 E) None of the above.

12) How many valence electrons do the alkali earth metals possess? A) 1 B) 2 C) 7 D) 6 E) 8

3 13) Place the following elements in order of decreasing atomic radius.

Xe Rb Ar

A) Ar > Xe > Rb B) Xe > Rb > Ar C) Ar > Rb > Xe D) Rb > Xe > Ar E) Rb > Ar > Xe

14) Place the following in order of decreasing radius.

Te2- F- O2-

A) F- > O2- > Te2- B) F- > Te2- > O2- C) Te2- > O2- > F- D) Te2- > F- > O2- E) O2- > F- > Te2-

15) Choose the statement that is TRUE. A) Outer electrons efficiently shield one another from nuclear charge. B) Core electrons effectively shield outer electrons from nuclear charge. C) Valence electrons are most difficult of all electrons to remove. D) Core electrons are the easiest of all electrons to remove. E) All of the above are true.

16) Place the following in order of increasing IE1.

N F As

A) N < As < F B) As < N < F C) F < N < As D) As < F < N E) F < As < N

17) Which ion does not have a noble gas configuration in its ground state? A) Sc3+ B) Al3+ C) Ga3+ D) As3- E) They all have noble gas configuration.

4 18) How many of the following species are paramagnetic?

Sc3+ Br- Mg2+ Se

A) 0 B) 2 C) 1 D) 4 E) 3

19) Choose the valence orbital diagram that represents the ground state of Se2-. A)

B)

C)

D)

E)

20) Place the following in order of increasing metallic character.

Rb Cs K Na

A) K < Cs < Na < Rb B) Na < K < Rb < Cs C) Cs < Rb < K < Na D) K < Cs < Rb < Na E) Na < Rb < Cs < K

21) Identify the most reactive alkali metal with water. A) Cs B) Rb C) K D) Na E) Li

5 22) Identify a characteristic of halogens. A) powerful reducing agents B) forms water in reactions C) powerful oxidizing agents D) absorbs water in reactions E) inert

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