Answers
Hund's rule tells us that 1) any orbital in a given subshell must first be occupied by a single electron before being occupied by a second electron and 2) the electrons in a singly occupied orbital all have the same spin.
Diagram I follows both 1 and 2; there are no prematurely-filled orbitals (boxes), and all the singly-filled 2p orbital have the same spin (the arrows are all pointing up). So, diagram I follows Hund's rule and is correct.
Diagram II violates 1: the first box in the 2p subshell is doubly filled while there's still a vacant orbital. That second electron in the first box should be in the third box and pointing upward for diagram II to be correct. Thus, diagram II violates Hund's rule and is incorrect.
Diagram III follows rule 1 but violates rule 2: While every 2p orbital is singly filled, they do not all have the same spin. In the second box, the arrow is pointing down while the arrows in the other two boxes are pointing up. Thus, diagram III violates Hund's rule and is incorrect.
So, of the diagrams given, II and III do not follow Hund's rule and thus are incorrect.
Related Questions
The percentage of salicylic acid is 60.78% carbon 4.38% hydrogen and the rest is oxygen calculate the empress formula of salicylic acid
Answers
Answer: c2h2o
Explanation:
How does the digestive system work with the muscular system?
A: Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those
nutrients where they need to go.
B: It doesn't
C: The enteric nervous system's network of nerves, neurons and neurotransmitters extends along the entire digestive tract - from
the esophagus, through the stomach and intestines, and down to the anus.
D: The muscular system allows for movement within the body, for example, during digestion or urination.
Answers
Answer:
the answer is not d because you can pee without moving. so its a because without the food nutrient no part of our body can work
How do I write a Major Electron Level Notation in the ground state??
Answers
A sample of Ar(g) is contained in a
cylinder with a moveable piston at an initial
temperature of T. The volume of the
sample is decreased from 4.5 L to 1.5 L
while the pressure is held constant, as
shown in the diagram below.
Answers
Answer:
Option (B) is correct.
Explanation:
Initial temperature of the gas is T.
The volume of the sample is decreased from 4.5 L to 1.5 L while the pressure is held constant.
At constant pressure, the relation between volume and temperature is given by :
[tex]\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]
Here, V₁ = 4.5 L, V₂ = 1.5 L, T₁ = T₁, T₂ = ?
So,
[tex]T_2=\dfrac{V_2T_1}{V_1}\\\\T_2=\dfrac{1.5\times T_1}{4.5}\\\\T_2=\dfrac{T_1}{3}[/tex]
So, the final temperature of the gas is [tex]\dfrac{T_1}{3}[/tex]. Hence, the correct option is (B).
what is the orbital diagram for manganese?
Answers
Explanation:
Oxidation States. +2,3,4,6,7
Electrons Per Shell 2 8 15
Electron Configuration [Ar] 4s2 3d5
1s2 2s2 2p6 3s2 3p6 4s2 3d5
IM IN A TEST NEED HELP ASAP
When 2.00 mol of the acid react with sodium carbonate, 1.00 mol of carbon dioxide is formed.Calculate the volume of carbon dioxide formed, in cm 3 , from 8.00 g of the acid at room temperature and pressure.
Answers
good luck on ur test i wish i could help u more but im only in 7th grade :/ and i dont know that yet, so sorry again! :(
Explanation:
What part of the isotope notation help you determine the number of electrons within an isotope?
Answers
(Element or Compound)
C2H30
Answers
Answer:
Compound
Explanation:
An element is just like Carbon by itself but when theres more than one element it is a compound.
Answer:
C2H3O is a compound as it is formed when three elementscarbon, hydrogen, oxygen) react together
Which are factors that affect the rate of chemical reactions? Select all that apply.
1.concentration
2.weight
3.temperature
4.surface area
Answers
4. Surface area
:))
Temperature and surface area are factors that affect the rate of chemical reactions. Hence, options C and D are correct.
What is temperature?Temperature is the measure of hotness or coldness expressed in terms of any of several scales, including Fahrenheit and Celsius.
The rate of a chemical reaction is affected by several parameters. Reactions involving two phases proceed more rapidly when there is greater surface area contact.
If the temperature or reactant concentration is increased, the rate of a given reaction generally increases as well.
Hence, options C and D are correct.
Learn more about temperature here:
https://brainly.com/question/23411503
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Write a balanced symbol equation for the incomplete combustion of hexane (C6H14) to produce soot.
Answers
Answer:
I77
Explanation:
6. How many molecules are in 2.7 moles of carbon dioxide
Answers
Answer:
2.7×6.022×10^23
=16.594×10^23 moleclules
Explanation:
number of mol= 2.7
1 mol of any element=6.022×10^23
therefote 2.7 mol =2.7×6.022×10^23
=16.594×10^23
So, saying you have a mole of iron atoms is like saying you have 6.022 • 10 to the 23 power iron atoms
There for you have 1.63 • 10 to the 24 power
How do astronomers observe and learn about celestial
objects?
Answers
Answer:
Astronomers use a number of telescopes sensitive to different parts of the electromagnetic spectrum to study objects in space. Even though all light is fundamentally the same thing, the way that astronomers observe light depends on the portion of the spectrum they wish to study.
Explanation:
This is due today and I’m so confused, if you know any of the answers, please help me out. Thank you!
Answers
1aii) unsaturated -having a double or triple bond and capable of taking on elements or groups by direct chemical combination
1bi ) bromine start water = red/brown/ orange colour finishing colour = colourless
1bii) name of product is C2H4Br2
The reactors are C2H4+ Br2–> C2H4Br2
*All the numbers are meant to be small *
Can I have brainly please ?
Boreal forests are characterized by _______ trees. A. Creosote b. Eucalyptus c. Coniferous d. Deciduous Please select the best answer from the choices provided A B C
Answers
Answer:
c
Explanation:
coniferous trees, Tianga also called Boreal forest biome (major life zone).
hope it's perfect.
Answer: C is correct.
what does appeal mean
Answers
Answer:
as a verb it means make a serious or urgent request, typically to the public.
"police are appealing for information about the incident"
as a noun it means a serious or urgent request, typically one made to the public.
"his mother made an appeal for the return of the ring"
Explanation:
hope it helps
Metal or Non-metal?
Potassium: metal
Fluorine:
Bromine:
Hydrogen
Beryllium:
Nitrogen
Answers
Answer:
Fluorine:non-metal
Bromine:non-metal
Hydrogen:non-metal
Beryllium:metal
Nitrogen:non-metal
If 36.5 m of a gas are collected at a pressure of 755 mm Hg, what volume will the gas
occupy if the pressure is changed to 632 mm Hg?
Answers
Answer:
Is there any answer options?, if not the answer is V2= 43.6m3
"The volume of the gas is calculated Boyles law. If 36.5 m of a gas are collected at a pressure of 755 mm Hg, then the volume of the gas will be 43.6 [tex]m^{3}[/tex]"
What is Boyles Law?
Boyle's law, also known as the Boyle–Mariotte law or Mariotte's law, would be an experimental gas law that specifies that how pressure of a gas decreases as the container capacity increases.
It can be represented by the formula:
[tex][P_{1} V_{1} =P_{2} V_{2}[/tex]
It is given that, [tex]P_{1}[/tex]= 755 mmHg, [tex]P_{2}[/tex] = 632 mm Hg, [tex]V_{1}[/tex]= 36.5[tex]m^{3}[/tex]. [tex]V_{2}[/tex]= ?
Now, put the value of given data in above formula:
[tex]V_{2}[/tex] = 755× 36.5/632= 43.6 [tex]m^{3}[/tex] .
To know more about Boyles law click here.
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Jessica places 100. g of water at 20.0℃ in an insulated cup. The specific heat capacity of water is 4.18 J/(g℃). What is the final temperature of the water if 5000. J of energy is added to the water in the insulated cup?
Answers
Answer:
31.96°C
Explanation:
Given that,
Mass of water, m = 100 g
Initial temperature, [tex]T_i=20^{\circ} C[/tex]
The specific heat capacity of water is 4.18 J/(g℃)
We need to find the final temperature of the water if 5000. J of energy is added to the water in the insulated cup.
The heat added to the water is given by :
[tex]Q=mc\Delta T\\\\Q=mc(T_f-T_i)\\\\\dfrac{Q}{mc}+T_i=T_f\\\\T_f=\dfrac{5000}{100\times 4.18}+20\\\\T_f=31.96^{\circ} C[/tex]
So, the final temperature is 31.96°C.
What is the name of this ion?
Can someone help
Answers
NaOH + HF --> NaF + H2O If you are given 3 moles of HF at the beginning of the reaction, how many moles of NaF will be produced?
Answers
Answer:
NaOH+HF-------NaF+H2O
1 mole Of HF=1mole of NaF
3mole HF= X
X=3mole of NaF
What is the molarity of a solution that
contains 20.0 g of KOH dissolved in 1.25
L?
Answers
Answer:
0.40m
Explanation:
Which phrase defines altitude?
how tightly molecules are packed
a column of air pushing on an area
the force pushing on an area or a surface
the height of a given point above sea level
Answers
what is the most important part of an Atom? Why?
Answers
Answer:
I would say proton and electron are the two most important subatomic particles in an atom
Explanation:
The number of protons inside a nucleus must equal to the number of electrons outside of the nucleus. This number determines all the chemical properties of the atom, which governs the behaviors of all matters in our world.
Answer:
I would say proton and electron are the two most important subatomic particles in an atom. The number of protons inside a nucleus must equal to the number of electrons outside of the nucleus. This number determines all the chemical properties of the atom, which governs the behaviors of all matters in our world.
Explanation:
How many particles are in 3.4 moles of HCl?
Answers
Answer:
The volume is 77 L.
Explanation:
where P is pressure, V is volume, n is moles, R is the gas constant, and T is temperature in Kelvins.
The current STP temperature is 0∘C or 273.15 K (used for gas laws), and the pressure is 105Pa, which most people write as 100 kPa (both pressures are equal).
Which of the following occurrence indicates that a chemical reaction has taken place?
a. An odor is produced by burning a sugar cube.
b. A puddle is produced by melting an ice cube.
C. A loud noise is produced by crushing a can.
d. A shard of glass is produced by breaking a bottle.
Answers
The rest are mainly just physical changes
Newton's 2nd Law of Motion states that the "acceleration" of an object depends on what 2 things? i need help fast plz 10 points
Answers
Answer:
Speed and velocity
Explanation:
The acceleration is depend directly on the force while inversely on the mass.
Which choice best explains how herd behavior helps young musk oxen survive?
A. Adults keep the young musk oxen warm.
B. Adults teach the young musk oxen how to fight.
C. Adults keep the young musk oxen safe from wolves.
D. Adults warn the young musk oxen when wolves are nearby
Answers
Answer:
A
Explanation:
'herd behavior' helps understand the question for the answer
Answer:
A. Adults keep the young musk oxen warm.
Explanation:
How many moles of Mg3(PO4)2 are in 350.00 grams of Mg3(PO4)2?
Answers
Answer:
1.3 moles/ 1.33150727 moles
Explanation:
350g x 1 mol/262.86g = 1.3 moles
The molar mass of Mg3(PO4)2 is 262.855 g/mol
Atomic weight of the parts:
Mg 24.3050 x 3 = 72.92
P 30.973762 x2 = 61.95
O 15.9994 x8 = 127.995
There are 262.855 grams in one mole, so
350.00 g x (262.855g/1 mole) = 1.33 moles Mg3(PO4)2
Can someone answer this asap!! All I know is 188g is incorrect!
Answers
Answer:
db gb bg
Explanation:
Cuando haces ejercicios abdominales estas realizando un trabajo. Si haces el mismo numero de abdominales en la mitad de tiempo que acostumbras, ¿como seria tu rendimiento en terminos de potencia comparandolo con el tiempo normal en que las haces?
Answers
Answer:
El rendimiento seria mayor ya que la potencia aumenta.
Explanation:
La potencia aumenta cuando determinado trabajo se realiza en menor cantidad de tiempo.