1. Which isoelectronic series is correctly arranged in order of increasing radiu
ID: 801020 • Letter: 1
Question
1. Which isoelectronic series is correctly arranged in order of increasing radius?
A) K < Ge < Br < Ca
B) Ge < Br < K < Ca
C) K < Ca < Br < Ge
D) Ca < Br < Ge < K
E) Br < Ge < Ca < K
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2. Which one of the following is an isoelectornic series?
A) Ca3+, K, Ar2+, S-2
B) Ca2+, K1+, Ar, S2-
C) Ca, K+, Ar, S1-
D) Ca, K, Ar, S
E) Ca2+, K, Ar, S
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4. In the molecule BrF3 the bromine uses which thpe of Hybird?
A) Sp3d
B) sp3
C) Sp3d2
D) sp2
E) sp
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Explanation / Answer
1. Which isoelectronic series is correctly arranged in order of increasing radius?
A) K < Ge < Br < Ca
B) Ge < Br < K < Ca
C) K < Ca < Br < Ge
D) Ca < Br < Ge < K
E) Br < Ge < Ca < K
===========================================
2. Which one of the following is an isoelectornic series?
A) Ca3+, K, Ar2+, S-2
B) Ca2+, K1+, Ar, S2-
C) Ca, K+, Ar, S1-
D) Ca, K, Ar, S
E) Ca2+, K, Ar, S
=============================================
4. In the molecule BrF3 the bromine uses which thpe of Hybird?
A) Sp3d
B) sp3
C) Sp3d2
D) sp2
E) sp
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