CHEM 1305- Home-work-5
1)
2)
NAME:
The periodic law states that when elements are arranged in order of ________ their properties repeat
themselves at regular intervals.
A) increasing atomic number
B) decreasing atomic number
D) decreasing atomic mass
E) nuclear charge
C) increasing atomic mass
In which of the following sets of elements are all members of the set in the same group in the
periodic
table?
A) 9F, 10Ne, and 11Na
B) 14Si, 15P, and 16S
D) 7N, 15P, and 16S
E) 31Ga, 49In, and 81Tl
C) 20Ca, 26Fe, and 34Se
3) Which element/classification pair is incorrectly matched?
Element
Classification
A) Cd
metal
B) Li
alkali metal
C) Ne
noble gas
D) Cl
halogen
E) Ce
transition metal
4) The elements in groups IA, VIIA and VIIIA are called, respectively:
A) alkaline earth metals, halogens, chalcogens
B) alkali metals, chalcogens, halogens
C) alkali metals, halogens, noble gases
D) alkaline earth metals, transition metals, halogens
5) The maximum number of electrons found in a shell ________.
A) is the same as the shell number
B) doubles as the shell number increases by one
C) varies in an unpredictable manner
D) is equal to 2n2
E) is equal to nZ
6) What is the maximum number of electrons in the n  4 shell?
A) 2
B) 16
C) 8
D) 18
E) 32
7) Which response includes all the following statements that are true, and no others?
I.
The f subshell contains 7 orbitals.
II.
The third energy shell (n3) has no f orbitals.
III.
There are ten d orbitals in the d subshell.
IV.
The second energy shell contains only s and p orbitals.
V.
A p orbital can accommodate a maximum of 2 electrons.
A) I, II, and IV
B) II, III, and V
D) I, III, and IV
C) II and IV
E) I, II, IV, and V
8) Which of the following subshells is lowest in energy?
A) 6s
B) 3d
C) 4s
D) 5d
E) 4p
9) The atomic orbital depicted is a(n) ________ orbital.
A) d
B) s
C) p
D) f
10) At maximum, an f subshell can hold _____ electrons, a d subshell can hold ____ electrons and a p
subshell can hold ____ electrons.
A) 14, 10, 6
B) 2, 8, 18
C) 18, 8, 2
D) 2, 12, 21
11) Which of the following electron configurations is incorrect as written?
A) 1s22s22p63s23p64s23d104p4
B) 1s22s22px22py22pz23s2
C) 1s22s22p63s23p63d10
D) 1s22s22p63s2
12) Which element has the electron configuration [Kr] 4d 105s25p2?
A) Sn
B) Sb
C) Pb
E) 1s22s22p63s23p6
D) Ge
E) Te
13) Which of the following pairings is incorrect?
A) Au - d area of periodic table
B) In - d area of periodic table C) Xe - p area of periodic table
D) Be - s area of periodic table
E) Zn - d area of periodic table
14) Which of the following element-classification pairings is incorrect?
A) K - representative element
B) Ar - noble gas
D) Th - inner transition metal
E) Po – halogen
C) Mo - transition element
15) In which of the following areas of the periodic table do you find both metals and nonmetals? (Ignoring
the position of Hydrogen).
A) both s and p areas
B) s area only
C) p area only
D) both p and d areas
E) both d and f areas
16) Which of the following elements would be expected to have the least metallic character?
A) Ba
B) Ga
C) V
D) O
E) F
D) 17Cl
E) 12Mg
17) Which of the following elements has the largest atomic radius?
A) 11Na
B) 13Al
C) 15P
18) Which element is the most metallic?
A) fluorine
B) gallium
C) zinc
D) scandium
19) Rank the elements below in order of decreasing atomic radius:
Mg, Na, P, Si, Ar
A) Mg, Na, P, Si, Ar
B) Na, Mg, Si, P, Ar
C) Si, P, Ar, Na, Mg
D) Ar, Si, P, Na, Mg
20) Number of electrons in the 3d subshell of Mn
A) 0
B) 5
C) 7
D) 10
E) barium