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4980 - 1 - Page 1
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1)
Which electron configuration represents the element with the smallest atomic radius?
A) 1s22s22p 3
2)
B) 13
B) F
B) K
C) F
B) 2-6
becomes an ion with a smaller radius than the atom of chlorine
becomes an ion with a larger radius than the atom of chlorine
loses an electron
loses a proton
As a sulfur atom gains electrons, its radius
B) decreases
B) carbon
C) sulfur
D) sodium
C) Mg 2+
D) Na+
Which ion has the smallest radius?
B) K+
Which electron configuration represents the atom with the largest atomic radius?
B) 1s1
C) 1s22s1
D) 1s22s2
Proceeding from left to right in Period 2 of the Periodic Table, the atomic radius of the elements generally
A) remains the same
16)
C) increase and the ionization energies decrease
D) decrease and the ionization energies increase
Which element's atoms have a larger atomic radius than atoms of silicon?
A) 1s22s22p 1
15)
C) increases
As the elements of Group 16 are considered from top to bottom on the Periodic Table, the atomic radii
A) Ca2+
14)
D) 2-5
When an atom of chlorine forms an ionic bond with an atom of sodium, the atom of chlorine
A) chlorine
13)
D) Li
C) 2-7
A) increase and the ionization energies increase
B) decrease and the ionization energies decrease
12)
D) K
Which electron configuration represents the element with the smallest atomic radius?
A) remains the same
11)
C) S
Which element will form an ion whose ionic radius is larger than its atomic radius?
A)
B)
C)
D)
10)
D) fewer protons
Which element has an atomic radius that is greater than its ionic radius?
A) 2-4
9)
C) fewer electrons
The relative electronegativity increases and the atomic radius decreases.
The relative electronegativity decreases and the atomic radius decreases.
The relative electronegativity increases and the atomic radius increases.
The relative electronegativity decreases and the atomic radius increases.
A) Mg
8)
B) more electrons
As the elements Li to F in Period 2 of the Periodic Table are considered in succession, how do the relative electronegativity and
the atomic radius of each successive element compare?
A) O
7)
C) It becomes smaller by losing 3 electrons.
D) It becomes larger by losing 3 electrons.
The radius of a calcium ion is smaller than the radius of a calcium atom because the calcium ion contains the same nuclear charge
and
A)
B)
C)
D)
6)
D) 18
How does the size of an aluminum atom change when it becomes an ion with a charge of +3?
A) more protons
5)
D) 1s22s22p 2
C) 3
A) It becomes smaller by gaining 3 electrons.
B) It becomes larger by gaining 3 electrons.
4)
C) 1s22s22p 5
In Period 4 of the Periodic Table, the atom with the largest atomic radius is located in Group
A) 1
3)
B) 1s22s22p 4
B) decreases
C) increases
Which element's ionic radius is smaller than its atomic radius?
A) sulfur
B) nitrogen
C) neon
D) sodium
4980 - 1 - Page 2
17)
As the elements in Group 2 are considered in order of increasing atomic number, the atomic radius of each successive element
increases. This increase is primarily due to an increase in the number of
A) unpaired electrons
B) electrons in the outermost shell
18)
Which atom has the smallest atomic radius?
A) Be
19)
B) C
B) F
D) Ca
C) Se
D) Cu
C) Ca
D) Cl
B) magnesium
C) strontium
D) calcium
B) Br-
C) I-
D) Cl-
B) Se2B) S
Which ion has the largest radius?
The atom of which element has an ionic radius smaller than its atomic radius?
A) N
29)
C) Li
B) Mg
Which element has the largest atomic radius?
A) F28)
D) Li, Na, K
Which atom has a radius larger than the radius of its ion?
A) barium
27)
C) Cl, Br, I
Which particle has the largest radius?
A) Se
26)
B) Al, Si, P
Which element forms an ion that is larger than its atom?
A) Cu 2+
25)
C) a halogen
D) a noble gas
Which sequence of elements is arranged in order of decreasing atomic radii?
A) Cl
24)
B) Rb
B) 2-3
C) 2-1
D) 1
B) Na+
C) Na0
D) K0
According to the Properties of Selected Elements chemistry reference table, which element has the smallest atomic radius?
A) potassium
33)
C) gain electrons and increase in size
D) lose electrons and increase in size
Which particle has the smallest radius?
A) K+
32)
D) Br
Which electron configuration represents the atom with the largest atomic radius?
A) 2-2
31)
C) S
When a metal atom combines with a nonmetal atom, the nonmetal atom will
A) lose electrons and decrease in size
B) gain electrons and decrease in size
30)
D) O
The element in Period 2 with the largest atomic radius is
A) N, C, B
23)
C) Na
C) neutrons in the nucleus
D) electrons in the outermost shell
A) an alkaline earth metal
B) an alkali metal
22)
D) F
As the elements in Group 1 are considered in order of increasing atomic number, the atomic radius of each successive element
increases. This is primarily due to an increase in the number of
A) unpaired electrons
B) principal energy levels
21)
C) Li
An ion of which element is smaller than its atom?
A) Cl
20)
C) occupied principal energy levels
D) neutrons in the nucleus
B) cobalt
C) nickel
D) calcium
As the atoms of the elements from atomic number 3 to atomic number 9 are considered in sequence from left to right on the
Periodic Table, the atomic radius of each successive atom is
A) larger, and the nuclear charge is greater
B) smaller, and the nuclear charge is less
C) larger, and the nuclear charge is less
D) smaller, and the nuclear charge is greater
4980 - 1 - Page 3
34)
What occurs as the atomic number of the elements in Period 2 increases?
A)
B)
C)
D)
35)
The nuclear charge of each successive atom increases, and the covalent radius decreases.
The nuclear charge of each successive atom increases, and the covalent radius increases.
The nuclear charge of each successive atom decreases, and the covalent radius increases.
The nuclear charge of each successive atom decreases, and the covalent radius decreases.
Compared to a neon atom, a helium atom has a
A) smaller first ionization energy
B) smaller radius
36)
Which particle has the largest radius?
A) F-
37)
B) 2
B) Ca
D) Ne
C) 7
D) 6
C) K
D) Mg
Compared to the atomic radius of a sodium atom, the atomic radius of a magnesium atom is smaller. The smaller radius is primarily
a result of the magnesium atom having
A) fewer principal energy levels
B) a larger nuclear charge
40)
C) Ar
Which atom has the largest atomic radius?
A) Na
39)
B) Cl-
The alkaline earth element having the largest atomic radius is found in Period
A) 1
38)
C) greater number of electrons
D) larger atomic number
C) a smaller nuclear charge
D) more principal energy levels
The S2- ion differs from the S0 atom in that the S2- ion has a
A) smaller radius and more electrons
B) larger radius and fewer electrons
C) smaller radius and fewer electrons
D) larger radius and more electrons