Compare the electric repulsion of the protons in the uranium nucleus (element 92) with the repulsion of the protons in the nucleus of barium (element 56).Which repulsion is larger?

Answers

Answer 1

Answer:

uranium nucleus

Explanation:

The charge on protons is positive. Hence repulsion is to be expected between the like charges.

The magnitude of repulsion between protons increases with the number of protons present in the nucleus.

Uranium possess 92 protons while barium possess only 56 protons. Hence uranium having a larger number of protons will experience a larger repulsion in its nucleus compared to barium.


Related Questions

What forces are present in this situation?
An elevator is rising at a constant speed; the elevator is the object in this situation.
A.gravity and tension
B.normal,gravity,and tension
C.normal and tension
D.gravity

Answers

Answer:

A. Gravity and Tension

Explanation:

Gravity and Tension would be the only things changing the rising speed of the elevator.

Normal makes no sense not sure why that is an answer.

Gravity effects how much Tension is pulling on the elevator to go down while the elevator is pushing up.

Let me know if you have any other questions.

Can you think of other solutions that might be
acidic?

Answers

Answer:

i think the answer is yess

Answer:

Limes, Lemons, Vinegar, Stomach acid, Batteries, Sour Candy, etc.

Nitric Acid, Chloric Acid, Carbonic Acid, Citric Acid, Perchloric Acid, Flouric Acid, etc.

Hope this helps!

Explanation:

UCI Chemistry researchers, Prof. F. Sherwood Rowland and Dr. Mario Molina werefirst to discovered in 1973 that chlorofluorocarbons (CFCs) were depleting the Earth’sozone layer when released into the atmosphere. Once they reach the stratosphere, Clis released from the CFCs molecules by interaction with UV light. Free Cl atoms areable to react with ozone in a catalytic cycle that converts O3into the more stable O2.It is estimated that a single Cl atom is able to react with∼100000 O3molecules.Although CFCs production was banned in 1996, there are still a substantial numberof motor vehicle air conditioners (MVACs) that use CFC-12 (CF2Cl2) as refrigerant.The average CFC-12 emission rate from operating MVACs has been estimated tobe 59.5 mg per hour per vehicle (Zhang et al.Environ. Sci. Technol. Lett.2017).How much chlorine, in kg, is added to the atmosphere in a year due to 100 millionMVACs using CFC-12 as refrigerant?

Answers

Answer:

15.27895 x 10⁶kg of chlorine radical is added to the atmosphere in a year due to 100 million MVACs                                                                                              

Explanation:

Chlorofluorocarbons (CF₂Cl₂) from refrigerants produce chlorine radicals according to the following equation

         CF₂Cl₂ → CF2Cl  + Cl ⁻ .........(1)

From equation 1, one mole of CF₂Cl₂ produces one mole of Chlorine radical

From the question,

The emission rate of CF₂Cl₂ is 59.5mg/hour/MVAC

In one day the emission rate would be 59.5 x 24hours

                                                                  = 1428mg/day

In one year, the emission rate would be 1428mg/day x 365days

                                                                 =  521220mg/year

                                                                   = 521.220g/year/MVAC

Therefore the emission rate for 100 million MVAC using CF₂CL₂ in a year is

                                                                    = 52122 x 10⁶g/year/MVAC

                                                                    = 52122 x 10³kg/year/MVAC

The molar mass of CF₂CL₂                       = 120.913g/mol

No of moles  of CF₂CL₂                              = mass/ molar mass

                                                                     = 52122 x 10⁶g / 120.913g/mol

                                                                      = 431 x 10⁶ moles of CF₂Cl₂

From equation 1,  since one mole of CF₂Cl₂ produces one mole of Chlorine radical, it implies that

431 x 10⁶ moles of CF₂Cl₂ would produce 431 x 10⁶ moles of chlorine radical,

Therefore, to find the mass of chlorine radical produced, we use the formula

No of moles of chlorine radical  = mass/ molar mass

431 x10⁶ moles = mass of chlorine radical /molar mass of chlorine radical

431 x 10⁶ moles = mass/ 35.45g/mol

mass of chlorine =  431 x 10⁶ moles x 35.45 g/mol

                            =    15278.95 x 10⁶ g

In Kg, the mass    =   15,278.95 x 10³kg of cholrine radical

                             =   15.27895 x 10⁶ Kg of chlorine radical

                                                                                                 

Need help fast please I am timed and giving 47 points.
Four groups of students plan scientific investigations to answer four questions for the science fair.

Questions for Science Fair:

1-What kinds of plant life grow naturally in the town parks?

2-Which types of treats do different breeds of dogs like best?

3-Do different types of grass affect how far a ball rolls?

4-How are the chemicals in different vegetables similar?

Which question would most likely be answered with an experimental investigation?

A-1
B-2
C-2
D-4

Answers

Answer:

C

Explanation:

Answer:

C - 3

Explanation:

This can be actually tested

Which scientist is known for developing the planetary model of the atom

Answers

Answer:

Ernest Rutherford

Explanation:

The Rutherford model, proposed originally in 1911, dipicts a planetary model of the atom in which there is a nucleus and electrons circling it.

Answer:

Niels Bohr

Explanation:

What causes uneven heating on Earth? *
Temperature Differences
Earth's Rotation
Earth's Revolution
Global Wind System
if u get it right i will give brainliest

Answers

Answer:

temperature differences

Explanation:

Solar heating of the Earth's surface is uneven because land heats faster than water, and this causes air to warm, expand and rise over land while it cools and sinks over the cooler water surfaces. ... Wind is the result of pressure changes in the atmosphere.

In which of the following situations is a plant reproducing sexually?

Answers

Answer:

(ANSWER CHOICES ORDER MAY BE DIFFERENT FROM YOURS!!)

 A.  

The pollen from one flower is transported by an insect to the ovule of another flower.

 B.  

A potato plant produces a tuber, and the next year, a new plant grows from the tuber.

C.  

Part of the stem segment of a cactus plant falls off and begins to form a new plant.

D.  

A new shoot emerges from a strawberry plant and produces another plant.

Explanation:

It's "The pollen from one flower is transported by an insect to the ovule of another flower. " because i got it from study island


A. O CN
B. O NH4+
C. O s2-
D. O Cro 2-
Which of the following is an oxyanion?

Answers

c i think i got this off of usa test prep in class

A scientist that studies wind movement should know about________ which helps predict where global winds will go. *
if u get it right i will give u brainliest
Types of fronts
Temperature differences on Earth
Types of breezes
The water cycle

Answers

Answer:

Types of fronts because meteorologists are able to predict the weather by the looking at the air mass (fronts) in the atmosphere.

Answer:

Types of fronts

Explanation:

Atoms can gain, lose, or share
electrons during a chemical change. Why
doesn't this cause the atoms identities to
change?

Answers

Answer:

Atoms can gain, lose, or share electrons during a chemical change. Chemical changes do not affect the nucleus of an atom. For this reason, an atom has the ability to retain its properties or identity even if the number of electrons is different. Therefore, the atom's identity won't change.

Explanation:

n the Bohr model of an atom (shown), protons are represented in blue, the neutrons are red and the electrons are green. Use your periodic table and determine which of the following atoms is represented by the Bohr model.

Answers

Answer: B

Explanation: Valence electrons are the number of electrons out the outermost shell of the diagram. In this diagram, there is one valence electron. This means that it is highly reactive since the shell is not complete and needs other elements to be able to complete the outermost shell. If this model had a full outermost shell, then it would not be reactive (noble gases).

Answer: B

Explanation:This test it anoying.

Which of the following atoms has the largest radius


F
I
Cl
Br

Answers

Answer:

francium

Explanation:

Atomic radii bary in a predictable across the periodic table.

The atomic radius elements increases down a group. Hence in the halogen group the last element in the group that is I have the largest radius.

What is atomic radius?

Atomic radius is the distance is the distance from the nucleus to the valence orbital. The atomic radius depends on the electronegativity and number of electrons in the atom.

In periodic table, atomic radius decreases from  left to right because, the electronegativity that is the ability of atomic nucleus to attracts its electron increases and thereby the atoms shrinks.

Down a group the number of shells increases and thereby electrons are more screened from the nuclear attractive pulling. Therefore in the group from fluorine, chlorine, bromine and iodine, iodine has the less electronegativity and thus largest radius.

To find more on atomic radius, refer here:

https://brainly.com/question/14544878

#SPJ6

Almost all of Earth's atmosphere is created through the process of photosynthesis.

True

False

Answers

Answer:

False

Explanation:

Which property can be used to tell gold and pyrite apart?
O A. Color
O B. Conductivity
C. Shininess
D. Malleability

Answers

Answer:

D. Malleability

Explanation:

Gold is made up of the element Au and it is a metal.

Pyrite is iron sulfide and it is a non-metal.

They have very similar appearance to such an extent that pyrite is widely called the fool's gold. To distinguish between the two, we simply explore their metallic properties. Gold is malleable. Pyrite is not. It will crumble under pressure.

Label B-L in the diagram below

Answers

Answer:

B. Polar Easterlies

C. Sub polar low

D. Prevailing westerlies

E. Sub tropical high

F. Tropical easterlies

G. Inter tropical convergence zone

H. Tropical easterlies

I. Sub tropical high

J. Prevailing westerlies

K. Sub polar low

L. Polar easterlies

Explanation:

which of the nonmetals is the least reactive?

a) Ne

b) O

c) Cl

d) F

Answers

Flourine

Explanation:

The element F has a high negative (ΔeqHө) but not so high IE1 . Therefore, it is the least reactive non-metal.

I’m sure it is d)F hope that helps :>

When 21.5 g of CH4 gas reacts with 387.5 g O2 gas, how much CO2 is formed?

Answers

Answer:

Mass = 58.96 g

Explanation:

Given data:

Mass of CH₄ = 21.5 g

Mass of O₂ = 387.5 g

Mass of CO₂ formed = ?

Solution:

Chemical equation:

CH₄ + 2O₂       →   CO₂ +  2H₂O

Number of moles of CH₄:

Number of moles = mass / molar mass

Number of moles = 21.5 g/ 16 g/mol

Number of moles = 1.34 mol

Number of moles of O₂ :

Number of moles = mass / molar mass

Number of moles = 387.5 g/ 32 g/mol

Number of moles = 12.1 mol

now we will compare the moles of CO₂  with O₂  and CH₄.

                       O₂             :          CO₂

                          2             :            1

                          12.1          :          1/2×12.1 = 6.05 mol

                        CH₄          :          CO₂

                           1              :            1

                          1.34           :         1.34

Number of moles of CO₂ produced by  CH₄ are less thus it will limiting reactant.

Mass of  CO₂:

Mass = number of moles × molar mass

Mass =  1.34 mol × 44 g/mol

Mass = 58.96 g

Shanika is an engineer at an amusement park who is experimenting with changes to the setup for a magnetic roller coaster ride. In one ride, there are two identical roller coaster cars (orange and green) that start on opposite sides of a large magnet located at the center of a station. Shanika wants to get the largest increase in potential energy she can by moving one car one space to the left or the right. Shanika can move the orange car to point A or point B, or she can move the green car to point C or point D. Which movement should she make? Why will that movement result in the largest increase in potential energy? Describe the magnetic force that will act on the roller coaster car she moves.

Answers

Answer:

Shanika should move the orange coaster car to point B. This movement will result in the largest increase in potential energy. This is because the carts are repelling, which means to increase the potential energy you have to go against the magnetic field. Because the carts are being repelled from the centre magnet to go against the magnetic field you would move the cart closer to the magnet. In this case, moving the orange cart to point b would increase the potential energy greater than any other move.

Explanation:

what i meant in the last sentence was that moving the orange cart to b (closer to centre magnet) would end in a greater potential energy change than moving the other, green, cart closer. This is because of the distances between the carts and the centre magnet. Potential energy does not increase linearly meaning that if a cart is one cart is an inch away from the magnet and another is a foot, if you moved both magnets a cm closer to the centre magnet the one an inch away would have a larger potential energy change.

A 200.0-mL sample of helium gas is in a cylinder with a movable piston at 110 kPa and 275 K. The piston is pushed in until the sample has a volume of 95.0 mL. The new temperature of the gas is 310. K. What is the new pressure of the sample? a)51.1 kPa b)261 kPa c)249 kPa d)274 kPa

Answers

Answer:

Option B. 261 KPa.

Explanation:

From the question given above, the following data were obtained:

Initial volume (V1) = 200 mL

Initial pressure (P1) = 110 kPa

Initial temperature (T1) = 275 K.

Final volume (V2) = 95 mL

Final temperature (T2) = 310 K

Final pressure (P2) =?

The new pressure (P2) can be obtained by using the following formula as illustrated below:

P1V1 /T1 = P2V2 /T2

110 × 200/275 = P2 × 95/310

22000 / 275 = P2 × 95/310

80 = P2 × 95/310

Cross multiply

80 × 310 = P2 × 95

24800 = P2 × 95

Divide both side by 95

P2 = 24800/95

P2 = 261 KPa.

Thus, the new pressure of the gas is 261 KPa.

This chemical equation represents a chemical reaction.
NaCN + HBr + NaBr + HCN
Which two chemicals are reactants in the chemical reaction?
A.NaCN
B.NaBr
C.HCN
D.HBr

Answers

Answer: NaCN and HBr

Explanation:

What is the total number of electrons in As-3?

Answers

Answer:

Arsenic, As, has atomic number 33, which is the number of protons in the nuclei of its atoms. A neutral As atom would also have 33 electrons. The electron configuration of a neutral arsenic atom is [Ar]3d104s24p3

Explanation:

Suppose you want to make 2000g of a solution of glucose in water that has
2.8% (m/m) concentration. How much glucose should you use?​

Answers

Answer:

56 g of glucose

Explanation:

We can find the mass of glucose used as follows:

[tex] \%_{m/m} = \frac{m_{s}}{m_{sol}}\times 100 [/tex]   (1)

Where:

[tex]m_{s}[/tex] is the solute's mass =?    

[tex]m_{sol}[/tex] is the solution's mass = 2000 g  

% (m/m)= 2.8 %

By solving equation (1) for [tex]m_{s}[/tex] we have:

[tex] m_{s} = \frac{\%_{m/m}*m_{sol}}{100} = \frac{2.8*2000 g}{100} = 56 g [/tex]

Therefore, you used 56 g of glucose to make 2000 g of a solution of glucose in water.

I hope it helps you!    

Which on, help me please, WILL BE MARKED AS BRAINLEST

Answers

Answer:

b and c

Explanation:

Because in a chemical change in order for a substance or matter to change shape it needs to either heat up or cool down

YALL can you please answer this

Write a balanced chemical equation for the reaction that occurs when calcium metal undergoes a combination reaction with O2(g).

Answers

Answer:

CaO[tex]_{s}[/tex]

Explanation:

 The chemical reactants are;

            Calcium metal = Ca[tex]_{s}[/tex]

             Oxygen gas  = O₂[tex]_{g}[/tex]  

 Now let us write the reaction:

     2Ca[tex]_{s}[/tex]   +  O₂[tex]_{g}[/tex]  →  2CaO[tex]_{s}[/tex]

The product is CaO in solid form.

This reaction is a combination or synthesis reaction in which two substances combine to give a single product.

5. A family is traveling using three different modes of transportation. Seven of them travel in a large recreational vehicle, two in a car, and one on a motorbike. They start from the same place, travel at the same speed, and reach the final destination at the same time. *

Answers

Answer:

All three vehicles have the same kinetic energy because they have equal speed.

Mendelee's periodic table was organized by

Answers

Answer:

Mendeleev arranged the elements in order of increasing relative atomic mass . When he did this he noted that the chemical properties of the elements and their compounds showed a periodic trend .

Explanation:

Hope this helps!! Please consider marking brainliest! Have a good one!!

The outer shell of this element was determined as illustrated here.

It must be a _____.

Answers

The answer is ((Oxygen,O)) on the periodic table it’s number is 8. Which is the number of dots around the nucleus.

I just need to know which ones are insulators and the others conductors

Answers

Answer:

below

Explanation:

Insulators: wood, tire, glass cup, wool hat

Conductors: frying pan, penny, wire

when temperature increase gas decrease or increase support u r answer with daily life example​

Answers

Answer:

increase

Explanation:

dont known reason burr answer is correct

Answer:

When temperature increases ,gas increases ,because of the rise in temperature evaporation will take place.

Explanation:

When you boil water to make coffee/tea the kettle/boiler releases the evaporation caused by the rise in temperature.

How do You Think the radius of an atom will change as you move down a Group (Vertical Column) in the periodic table​

Answers

Answer:

As you move left to right, the atomic radius gets SMALLER, so atoms hold on to their electrons more tightly and are more reactive. As you move down a group, the atomic radius gets LARGER, so atoms have a weaker hold on their electrons and are less reactive

Explanation:

if this answer is correct make me as brainlelist

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