Answer:
A.
Explanation:
50 protons,50 electrons, 75 neutrons.
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How do electrons in the same atom differ?
Electrons in the same atom differ because they can have different quantum numbers
Further explanationAtoms consist of sub-particles: electrons, protons, and neutrons
The proton is positively charged (+1), the electron is negatively charged (-1). and neutrons not charged (neutral)
The electron configuration shows the energy level in the atom
The further away from the core, the higher the energy level
In the electron configuration we follow 3 rules:
1. Aufbau: Electrons occupy orbitals of the lowest energy 2 Hund: electrons fill orbitals with the same energy level 3. Pauli: no electrons have the same 4 quantum numbersEach orbital consists of 4 quantum numbers
n: the principal l: the angular momentum / azimuthal ml: the magnetic ms: the electron-spinFrom Pauli's rule, an electron can have 3 same but different quantum numbers in ms (quantum spin)
For example in the 1s orbital, then the quantum value of the 2 electrons that occupy the orbital:
first electron: n = 1, l = 0, ml = 0, ms = +1/2 second electron: n = 1, l = 0, ml = 0, ms = -1/2Therefore, in one orbital it is not allowed to fill more than 2 electrons because the quantum numbers will be the same
Will mark first correct answer brainliest
What is a limitation of using a chemical formula, such as CH1206, to represent a compound?
ОООО
The chemical formula does not show the types of elements that make up the compound.
The chemical formula does not show how the atoms are connected to one another.
The chemical formula does not show the number of atoms of each element in a molecule.
The chemical formula does not show the chemical symbols of the elements in the compound.
Answer:
it does not show the actual number of atoms in that molecule
Food web diagrams the interactions between organisms based on which organisms others are eating. A scientist is using a food web to predict the predator-prey relationship of a population. What can a food web best be classified as?
A. a mean
B. a graph
C. a model
D. a range
Answer:
model
Explanation:
edge 2020
Answer:
Model
Explanation:
edge 2021
Consider the decay of carbon 14 what changes between the parent and the daughter nuclide and what remains the same and what nuclide is more stable
Answer:
there is no change in mass
Explanation
ye
Decay of carbon-14 will forms a daughter nuclide with same mass by emitting the one beta. The resulting daughter nuclei have a lower mass and are lower in energy (more stable) than the parent nucleus that decayed.
What is radioactive decay?The two general kinds of nuclear reactions are nuclear decay reactions and nuclear transmutation reactions. In a nuclear decay reaction, also called radioactive decay,
The radioactive decay of carbon-14 is as shown bellow
C¹⁴ → N¹⁴ + β−
The carbon-14 atoms undergo beta-minus decay and produce a beta particle and a nitrogen-14 atom.
Beta means, an electron.
The radioactive decay is also same as the normal reaction in organic, inorganic. Reaction is always follows the law of conservation of mass. Total mass of left hand side is equal to right hand side.
In radioactive decay, beta, gamma, alpha partical is the byproduct
To find more about Nuclear fussion. structure, refer the link below:
brainly.com/question/25455333
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How many significant figures are in 100 L?
Answer:
there is only 1 significant figure in 100l
What are the trends for the difference between atomic radii and ionic radii for cations and anions?
Answer:
Explanation:
In a neutral atom, the atomic and ionic radius is the same, but many elements exist as anions or cations. If the atom loses its outermost electron (positively charged or cation), the ionic radius is smaller than the atomic radius because the atom loses an electron energy shell
Which word part means cold?
crylo
chem/
cis/o
cyan/
Ella makes this table to organize her notes on whether atoms gain or lose energy during the changes of state.
Which changes of state should she place in the column titled "Lose Energy"?
freezing, boiling, and melting
melting, vaporization, and sublimation
sublimation, deposition, and condensation
freezing, deposition, and condensation
Answer:
freezing, deposition, and condensation
Explanation:
Answer
Freezing, Deposition, and Condensation (D)
Explanation:
Took the test and got 100 on edg hope it helps :) <3
The Milky Way galaxy is described as a disk of stars orbiting a central point on the disk. Which of these best explains why people on Earth cannot see the entire shape of the Milky Way? Many more stars exist outside of the galaxy Many more stars exist outside of the galaxy Earth is a part of this galaxy so the rest is not easily visible Earth is a part of this galaxy so the rest is not easily visible The stars in the center of the galaxy are extremely small The stars in the center of the galaxy are extremely small The center of the galaxy consists of a dense cluster of stars
Answer: Earth is a part of this galaxy so the rest is not easily visible.
Explanation:
Milky Way consists of 200 billion stars, dust and gas. It solar system lies in the center of the galactic center. 20 light years above the plane of galaxy. The galactic center consists of huge number of stars which keep on rotating in the center. It is considered as a supermassive black hole. The planets also rotate in the galaxy. The earth is the part of the solar system which is the part of the galaxy. The earth is not visible in the galaxy so we cannot observe the entire galaxy from the earth.
3. The Solar Nebula Theory states that the Sun and all objects in the Solar System were
formed when a cloud of gas and dust (a nebula) collapsed. What observational
evidence supports this theory?
a. Most of the icy objects are located closer to the Sun than Jupiter
b. The inclination of the orbits is larger for objects near the Sun than for far away
objects
C. Most objects have orbits that are highly elliptical
d. Most objects orbit in the same direction
Answer:
C or B(most likley C)
Explanation:
During soldering, a mixture of metals ('solder') is heated until it melts. The molten metal falls into the gaps between two pieces of metal and freezes, joining the pieces of metal together. A 'soft solder' melts between 183 °C and 212 °C. A 'hard solder' melts between 620 °C and 680 °C. Explain the difference in melting ranges.
Answer:
[tex]31^oC[/tex]
Explanation:
Range = Highest value - Lowest value
A 'soft solder' melts between 183 °C and 212 °C.
Melting range of a 'soft solder' = [tex]212-183=29^oC[/tex]
A 'hard solder' melts between 620 °C and 680 °C.
Melting range of a 'hard solder' = [tex]680-620=60^oC[/tex]
So,
Difference in melting ranges = Melting range of a 'hard solder' - Melting range of a 'soft solder' = [tex]60^oC-29^oC=31^oC[/tex]
A calorimeter holds 75.0 g water at 26.0°C. A sample of hot copper is added to the water. The final temperature of the water and copper is 39.0°C. What is the change in heat associated with the change in the water’s temperature? The specific heat capacity of water is 4.19 J/g°C.
Answer:
14.0 yes
Explanation:
bevauee this is the awnser
Answer:
Explanation:
Devin investigated whether salt reduces the boiling point of water. She poured 1 gallon of 18
degrees Celsius (°C) water into a pot and added 2 cups of salt to it. Devin heated it over a fixed
flame and measured the temperature when the water reached a rolling boil. She repeated the
experiment with 1 gallon of water and 4 cups of salt under identical conditions. Where did Devin
make a mistake in her experimental design?
Answer:
D. She did not heat the pots of water at the same time.
Explanation:
The water of the first pot was a different temperature before boiling than the second pot.
I’m a little confused on how I should answer the question. Any help?
Explain the effect of balanced forces on the state of motion of an object?
Answer:
The effect of balanced forces on an object does not cause an object to change in motion.
Explanation:
hope this helps:)
1. A student wants to test if giving dogs a toy to play with makes their tail wag more. He gives dog toys to one group, while another group of dogs does not get any toys. He counts the number of times each dog wags their tail.
Experimental Group:
Control Group:
Answer
Experimental - The Dogs With Toys
Control - The Dogs With No Toys
Explanation - Im smart
Plz help!
What is 1 item that is an element?
Give an example of how the 1 item is an element
find the square root of 589 3.27
Answer:
76.7676364101
Explanation:
What is the electronic structure for silicone?
WILL MARK BRAINLYEST!!
Answer:
The answer isn’t
[Ne] 3s² 3p²
How many moles are in 45 g of H20?
Answer:
The answer is 18.01528.
Explanation:
This compound is also known as Water or Dihydrogen Monoxide. The SI base unit for amount of substance is the mole.
Need help on this
Question
Answer:
The answer is D
When the wedges are removed, the cars will move. Predict which direction they will move and when they will stop.
Answer:
they will move and stop
Answer:
they will both repel
Explanation:
because they both have the same charge
You run into your friend while ice skating and both of you fall in opposite directions. Newton's 1st Law
Newton's 2nd Law
Newton's 3 Law
Law of Universal Gravitation
Law of Conservation of Momentum
Answer:
Newtons Third Law
Explanation:
His third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A.
In the core of the sun, nuclear fusion combines hydrogen atoms to make helium atoms. What can you infer about helium from this?
A-Helium is lighter than hydrogen.
B-Helium is heavier than hydrogen.
C-Helium is heavier than oxygen.
D-Helium is heavier than carbon.
Answer:
My answer would be
B.
Explanation:
Although helium is twice as heavy as (diatomic) hydrogen, they are both significantly lighter than air, making this difference negligible. The lifting power in air of hydrogen and helium can be calculated using the theory of buoyancy as follows: Thus helium is almost twice as dense as hydrogen.
Answer:
It is lighter.
Which of the following would form a precipitate in a reaction?
LiCl
ZnSO4
NaOH
CaSO4
Answer:
NaOH
Explanation:
Precipitation reaction can be used in wastewater treatment. When a contaminant forms an insoluble solid, then we can use this reaction to precipitate out the contaminated ions. In wastewater, a frequent presence of heavy metals can be found such as compounds of sulphide and hydroxide. So, we can add a source of hydroxide that is soluble (NaOH Or Na2S) that will result in a precipitation reaction.
Which of the following is a form of stored energy?
A) heat energy
B) kinetic energy
C) sound energy
D) chemical potential energy
Answer:
option d
Explanation:
chemical potential energy
Answer:
D
Explanation:
Chemical potential energy is a form of stored energy. It is the potential energy between the chemical bonds of a substance.
in the periodic table the atomic number represents
Hunter is in lab. He clears a spot on his lab bench to start working. He also puts his lab coat and goggles on. He then identifies where all of the safety equipment is. He notices his station is next to the fume hood, which ventilates the chemicals stored there. The noise of the fume hood was bothersome, so Hunter turned it off. Which could be an error in his set-up? He should not turn off the fume hood. He should wait to put on his coat until after the directions are given. He should wait to put on his goggles until after the directions are given. He should not sit next to the fume hood.
Answer:
He should not turn off the fume hood.
Explanation:
According to this question, Hunter is in a laboratory where he is about to commence work. He starts by adhering to some laboratory safety rules including putting on his lab coat and goggles. However, he was bothered by the noise of the fume hood, which was close to his station. He then decided to switch/turn it off.
The "TURNING OFF OF THE FUME HOOD" is Hunter's error in this experimental set-up. This is because the fume hood is a laboratory safety device that helps prevent the inhalation of harmful gases by laboratory workers. The fume hood is a ventilated compartment which ventilates i.e. passes out, the chemicals stored there.
Every experiment involving chemicals should be performed in the fume hood in order to curb the escape of fumes from this reactions. Hence, TURNING THE FUME HOOD OFF means that one of the safety laboratory protocols has been defaulted.
Answer:
He should not turn off the fume hood.
Explanation:
Betsy created the following mnemonic device to help her remember the order of the planets starting from the Sun: “Most Very Elegant Mammals Sleep Just Until Noon”. Why doesn’t her mnemonic work?
Answer:
She has Saturn and Jupiter in the wrong order.
Explanation:
Answer the following questions in one word.
What types of quantities are pain, sadness, happiness, etc.
Imefio
for comparison
Answer:
its a feeling accompanied by different situation.
Explanation:
For instance; when we are having a lot of problems,obstacles, hindrances at the path of success we feel pain. Secondly,When we are left by someone then we feel sad.last but not the least while we are getting a lot of love from someone whom we love a lot, at this moment we can feel a state of happiness.