20: Element Re has in its nucleus A. 75 protons, 75 neutrons and 75 electrons C. 130 protons, 75 neutrons and 75 electrons 21: Which What is the valence shell electron configuration of the halogens A) ns pp B) na la below i Con-Cal B 75 protons, 130 euros and 25 elecom D. 75 prosens 110 seos and 75 elem D) p
20: Element Re has in its nucleus A. 75 protons, 75 neutrons and 75 electrons C. 130 protons, 75 neutrons and 75 electrons 21: Which What is the valence shell electron configuration of the halogens A) ns pp B) na la below i Con-Cal B 75 protons, 130 euros and 25 elecom D. 75 prosens 110 seos and 75 elem D) p
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Q 20 please
Transcribed Image Text:15: Which of the elements listed below has the highest first ionization energy
C) Ar
B) Ne
A) He
Di Ki
16: Which of the following orbitals has the highest energy?
A) 4p
B) 4s
C) 3p
D) 34
17:A compound contains 0.480 g C, 0.161 g H, 1.121 g N and 0.640 g 0 The empirical Remulia?
ACHNO
B. C₂H₂NO₂
C.CHNO
DORNO
18:According to VSEPR, the bond angle in Xef, is
B) 120
A) 90°
19: The Lewis structure for CS₂ is:
--
B) :S-C-S:
C) 180
20: Element
Re has in its nucleus
A. 75 protons, 75 neutrons and 75 electrons
C. 130 protons, 75 neutrons and 75 electrons
21: Which What is the valence shell electron configuration of the halogens
A) ns'np
B) na
22: The number of pi bonds in the molecule below is H-CC-C»N
B) Ne
B. 75 protons, 130 euros and 75 oom
D. 75 protons, 110 neutrons and 75 ek
D)
D) 10
CL L
LLL
D.NN NIL
25:The VSEPR model can be used to predict
C) molecular geometry
A) electronegativity
B) bond order
26: Indicate the type of hybrid orbitals used by the central atom in St
C) sp
D) sp'd
B) sp
A) SP
Now of Them
A) 1
B) 2
C) 3
HRD) S
19
23: What volume of 10.0 M HC1 is needed to make 2.00 L of 2.00 M HCT solution by dilution with wa
A) 0.800 L
B) 0.400 L
C) 0.200 L
D) 0,1001
24: The orbital diagram for a ground-state nitrogen atom is
1s
AL
6'd
D) Beth Band C are comet
He
LAME
Expert Solution
Step 1
185Re
Atomic number of Rhenium (Re) is 72 in a periodic table.
Here, Atomic mass of Re is 185
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