1) Choose the orbital diagram that represents the ground state of N.
2) The element that corresponds to the electron configuration 1s22s22p63s23p64s13d5 is
- A) titanium.
- B) vanadium.
- C) chromium.
- D) manganese.
- E) iron.
3) Identify the element that has a ground state electronic configuration of [Kr]5s24d5.
- A) Tc
- B) Mn
- C) Nb
- D) Ru
4) Give the complete electronic configuration for oxygen.
- A) 1s22s22py22pz2
- B) 1s22s22px22py12pz1
- C) 1s22s22px22pz2
- D) 1s22s22px22py2
- E) 1s22s22px4
5) How many valence electrons do the halogens possess?
- A) 5
- B) 6
- C) 2
- D) 1
- E) 7
6) How many valence electrons do the alkaline earth metals possess?
- A) 1
- B) 2
- C) 7
- D) 6
- E) 8
7) How many valence electrons do the alkali metals possess?
- A) 1
- B) 2
- C) 7
- D) 6
- E) 8
8) How many valence electrons do the noble gases possess?
- A) 1
- B) 2
- C) 7
- D) 6
- E) 8
9) A cation of +2 indicates that an element has
- A) lost two electrons.
- B) lost two protons.
- C) lost two neutrons.
- D) gained two electrons.
- E) gained two protons.
10) Give the ground state electron configuration for F⁻.
- A) 1s22s22p6
- B) 1s22s22p5
- C) 1s22s22p4
- D) 1s22s22p3
- E) 1s22s22p2
11) Give the ground state electron configuration for the ion of Ba.
- A) [Kr]5s25p6
- B) [Kr]5s24d105p66s26p2
- C) [Kr]5s24d105p66s1
- D) [Kr]5s24d105p66s2
- E) [Kr]5s24d105p6
12) Identify the isoelectronic elements.
- A) Cl-, F-, Br-, I-, At-
- B) N3-, S2-, Br-, Cs+, Sr2+
- C) P3-, S2-, C1-, K+, Ca2+
- D) Zn2+, Co2+, Cu2+, Cr2+, Cd2+
- E) Ne, Ar, Kr, Xe, He
13) For a particular element, identify the species that has the smallest radius.
- A) cation
- B) anion
- C) neutral
- D) radical
- E) They are all the same size
14) Identify the elements correctly shown by decreasing radii size.
- A) N3- > N
- B) K+ > K
- C) N > N3-
- D) Cu2+ > Cu+
- E) S- > S2-
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) Place the following in order of decreasing IE1.
Cs Mg Ar
- A) Cs > Mg > Ar
- B) Mg > Ar > Cs
- C) Ar > Mg > Cs
- D) Cs > Ar > Mg
- E) Mg > Cs > Ar
18) Place the following in order of increasing IE1.
K Ca Rb
- A) Ca < K < Rb
- B) Rb < Ca < K
- C) Ca < Rb < K
- D) Rb < K < Ca
- E) K < Ca < Rb
19) Describe the reaction of the noble gases with metals.
- A) inert
- B) vigorous
- C) mild reaction
- D) forms water
- E) dissolves
20) Describe the reaction of the alkali metals with non-metals.
- A) inert
- B) vigorous
- C) mild reaction
- D) forms water
- E) dissolves
