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Which one of these ions is not isoelectronic with Kr?


A) As3+
B) Se2−
C) Rb+
D) Sr2+
E) Br−

F) C) and D)
G) A) and E)

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The electron configuration of a ground-state vanadium atom is


A) [Ar]4s24d3
B) [Ar]4s24p3
C) [Ar]4s23d3
D) [Ar]3d5
E) [Ar]4s23d7

F) A) and C)
G) B) and C)

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What is the electron configuration for bromine?


A) 1s22s22p63s23p64s14d104p6
B) 1s22s22p63s23p64s24d104p5
C) 1s22s22p63s23p64s13d104p6
D) 1s22s22p63s23p64s23d104p4
E) 1s22s22p63s23p64s23d104p5

F) All of the above
G) C) and D)

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Consider the element with the electron configuration [Kr]5s24d105p5.This element is


A) a halogen.
B) a transition metal.
C) an alkali metal.
D) an actinide element.
E) a noble gas.

F) None of the above
G) All of the above

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How many orbitals can have the 4p description in a given atom?


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

E) None of the above
F) All of the above

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In what group of the periodic table is the element with the electron configuration [Ar]4s23d104p3? A)1A B)2A C)3A D)4A E)5A

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The number of orbitals in a d subshell is


A) 1.
B) 2.
C) 3.
D) 5.
E) 7.

F) B) and D)
G) A) and E)

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