(a) Interpretation: The ground state electronic configuration of tellurium needs to be determined. Concept introduction: According to Aufbau principle, electrons are filled first in lower energy orbitals followed by higher energy orbitals. Hund’s rule states that, while filling electrons in degenerate orbital, there will be a single occupancy first and then only pairing can take place.
(a) Interpretation: The ground state electronic configuration of tellurium needs to be determined. Concept introduction: According to Aufbau principle, electrons are filled first in lower energy orbitals followed by higher energy orbitals. Hund’s rule states that, while filling electrons in degenerate orbital, there will be a single occupancy first and then only pairing can take place.
Solution Summary: The author explains Aufbau principle, where electrons are filled first in lower energy orbitals followed by higher energy.
Definition Definition Number of protons in the nucleus of an atom. It uniquely identifies an element, as the number of protons determines the element's properties. The periodic table of elements is arranged based on increasing atomic numbers, allowing scientists to easily locate and study elements.
Chapter 8, Problem 86E
Interpretation Introduction
(a)
Interpretation:
The ground state electronic configuration of tellurium needs to be determined.
Concept introduction:
According to Aufbau principle, electrons are filled first in lower energy orbitals followed by higher energy orbitals.
Hund’s rule states that, while filling electrons in degenerate orbital, there will be a single occupancy first and then only pairing can take place.
Interpretation Introduction
(b)
Interpretation:
The ground state electronic configuration of cesium needs to be determined.
Concept introduction:
According to Aufbau principle, electrons are filled first in lower energy orbitals followed by higher energy orbitals.
Hund’s rule states that while filling electrons in degenerate orbitals, there will be a single occupancy first and then only pairing can take place.
Interpretation Introduction
(c)
Interpretation:
The ground state electronic configuration of selenium needs to be determined.
Concept introduction:
According to Aufbau principle, electrons are filled first in lower energy orbitals followed by higher energy orbitals.
Hund’s rule states that while filling electrons in degenerate orbitals, there will be a single occupancy first and then only pairing can take place.
Interpretation Introduction
(d)
Interpretation:
The ground state electronic configuration of platinum needs to be determined.
Concept introduction:
According to Aufbau principle, electrons are filled first in lower energy orbitals followed by higher energy orbitals.
Hund’s rule states that while filling electrons in degenerate orbitals, there will be a single occupancy first and then only pairing can take place.
Interpretation Introduction
(e)
Interpretation:
The ground state electronic configuration of osmium must be predicted.
Concept introduction:
According to Aufbau principle, electrons are filled first in lower energy orbitals followed by higher energy orbitals.
Hund’s rule states that while filling electrons in degenerate orbitals, there will be a single occupancy first and then only pairing can take place.
Interpretation Introduction
(f)
Interpretation:
The ground state electronic configuration of chromium must be predicted.
Concept introduction:
According to Aufbau principle, electrons are filled first in lower energy orbitals followed by higher energy orbitals.
Hund’s rule states that while filling electrons in degenerate orbitals, there will be a single occupancy first and then only pairing can take place.
B 1 of 2
Additional problems in preparation to Midterm #1:
1.) How can the following compounds be prepared using Diels-Alder reaction:
CH3 O
CN
(a)
(b)
CN
CH3
2.) What is the missing reagent in the shown reaction?
H3C
+ ?
H3C
H3C
CN
H3C
''CN
(၁)
H
3.) Write the products 1,2-addition and 1,4-addition of DBr to 1,3-cyclohexadiene.
Remember, D is deuterium, a heavy isotope of hydrogen. It reacts exactly like hydrogen.
4.) In the shown reaction, which will be the kinetic product and which will be the
thermodynamic product?
H3C
CI
H3C
HCI
H3C
+
5.) Which of the following molecules is aromatic?
(a)
(b)
(c)
H
6.) Which of the following molecules is aromatic?
(a)
(b)
(c)
7.) Write the mechanism for the shown reaction.
+
Ха
AICI 3
CI
8.) Suggest reagents that would convert benzene into the shown compounds.
CI
NO2
-8-6-6-8-a
(a)
(b)
(c)
(d)
(e)
(a)
SO3H
Br
The number of 2sp^2 hybridized atoms in is: A. 8; B. 6; C.4; D.2; E.0;
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